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Class Information
Number: 315
Name: Electric lamp and discharge devices: systems >
Description: This is a restricted class which includes assembled patents on the special types of electric lamp and electric space discharge device systems set forth in the following sections:










Class Number Class Name No. of Patents
315/88

Automatic substitution of the load device or electrode

60
315/92

Diverse-type load device or electrode substituted

33
315/91

Over-voltage or over-current controlled substitution

34
315/90

Plural load devices with selective substitution of load device or electrode

35
315/89

Plural substitution of load devices or electrodes

14
315/93

With current shifting switch

22
315/86

Automatic substitution of the power supply

206
315/87

With load device or electrode substitution

30
315/1

Cathode ray tube circuits

62
315/364

Cathode-ray deflections circuits

115
315/378

Circular, spiral, or radial sweeps

28
315/399

Deflection coil circuit

142
315/400

Including a saturable element

55
315/401

Including a temperature responsive element

18
315/402

Including a voltage dependent resistor

7
315/403

Including an amplifier

122
315/404

Tube-type amplifier

4
315/407

With diode or amplifier across coil

9
315/405

With transformer connecting amplifier to coil

12
315/406

With power recovery circuit

8
315/408

Including solid-state switch

338
315/372

For cathode-ray tube having plural targets

3
315/374

Targets in single plane

7
315/373

Targets radially about cathode

3
315/366

For flat cathode-ray tube

172
315/375

For plural phosphor target tube

31
315/376

With post deflection phosphor selection

11
315/367

Including a digital-to-analog device

105
315/409

Including a discharge device

16
315/410

With device discharging a condenser

32
315/368.11

Including color convergence control

81
315/368.25

Including core or winding structure

35
315/368.26

Adjacent to or integral with deflection winding or housing structure therefor

33
315/368.15

Including electrostatic element (e.g., electrode, lens, etc.)

57
315/368.16

Offset apertures in plural sequential electrodes

10
315/368.27

Including particular magnetic field distribution

37
315/368.28

Including plural cores or coils

53
315/368.17

Including signal delay circuitry

15
315/368.12

Including specified signal storage (e.g., memory, register, etc.)

59
315/368.13

Interpolation

39
315/368.18

Including specified waveform generating circuitry

66
315/368.19

By nonlinear device (e.g., square law device, diode, etc.)

11
315/368.21

Parabolic waveform

29
315/368.22

By integrating of signal

6
315/368.23

By multiplying of signal

9
315/368.24

Static convergence feature

14
315/387

Including feedback circuit

143
315/389

Negative feedback

76
315/390

Tube-type circuit

0
315/388

Plural feedback circuits

31
315/391

Plural deflection circuits

19
315/393

Interconnected sweep circuits

43
315/394

Plural deflections in one plane

4
315/392

Plural waveform display circuits

21
315/395

Plural potentials or currents applied to deflection member

56
315/396

Push-pull deflection circuit

18
315/397

Coil-type circuit

72
315/398

With cathode-ray centering

37
315/365

Symbol generator

25
315/369

Target controls deflection circuit

32
315/379

With additional control of cathode ray

28
315/380

Control only at turn-on or turnoff of circuit

21
315/381

Circuits control grid-cathode circuit of tube

73
315/383

Intensity control of ray

177
315/384

Ray blanking

67
315/385

Ray unblanking

5
315/386

With ray control responsive to deflection circuit

63
315/382

With focusing of ray

347
315/382.1

For television

132
315/377

With marker

24
315/370

With ray deflection distortion correction or reduction

430
315/371

By modulation of deflection waveform

372
315/3

Combined cathode ray tube and circuit element structure

193
315/4

Inductor or distributed parameter-type inductive structure

126
315/7

Connected to the deflecting electrodes

1
315/5

Ray passes in or through a hollow distributed parameter device

207
315/5.24

Deflecting or reflecting the ray

16
315/5.26

Device deflects the ray

7
315/5.27

Plural hollow devices

5
315/5.28

Plural hollow devices

10
315/5.25

Ray sweeps over an aperture or slot in the hollow device

5
315/5.33

Device also a ray anode or cathode

32
315/5.52

Device has a re-entrant portion surrounding the ray

14
315/5.37

Device has particular grid structure

72
315/5.36

Device removable from its grids

2
315/5.53

Device tunable

18
315/5.54

Device has a flexible wall

10
315/5.34

Focusing and/or concentrating the ray

26
315/5.35

By magnetic field

145
315/5.51

Plural gaps in the hollow device

42
315/5.39

Plural hollow devices

104
315/5.41

Accelerating or decelerating the ray between the hollow devices

195
315/5.46

Device tunable

22
315/5.48

Device has a flexible wall

11
315/5.47

Gang tuned hollow devices

12
315/5.42

Devices excited to accelerate the ray across their gaps; e.g., synchrotrons

82
315/5.43

Devices of different resonance frequency

42
315/5.44

Feedback connection between the hollow devices

10
315/5.45

Three hollow devices

1
315/5.49

Three hollow devices

3
315/5.14

Plural rays pass through or in the hollow device

17
315/5.16

Plural hollow devices

16
315/5.17

Feedback by ray

0
315/5.15

Rays merged at the hollow device

3
315/5.29

Ray has appreciable transverse electrical dimension and/or significant shape

20
315/5.32

Disk-shaped ray

9
315/5.31

Hollow ray

21
315/5.18

Ray returns to the hollow device; e.g., reflex type

7
315/5.19

By same path and/or to same aperture

2
315/5.21

Device tunable

3
315/5.22

Device has a flexible wall

1
315/5.23

Thermally controlled

3
315/5.13

With a magnetron

18
315/5.11

With a secondary emission stage

17
315/5.12

Secondary emission passes through or in the hollow device

10
315/5.38

With particular collector or anode structure

127
315/3.5

Traveling wave tube with delay-type transmission line

319
315/3.6

Line with plural characteristics or plural lines

159
315/8

Compensating for stray deflecting fields

231
315/9

Plural cathode-ray tubes in the circuit

18
315/14

Plural concentrating, accelerating, and/or de-accelerating stages

67
315/15

Three or more stages

125
315/16

Intermediate stage at lower potential

40
315/17

With ray-deflecting stage interposed between plural concentrating or accelerating and/or de-accelerating stage or co-extensive with one such stage

22
315/13.1

Plural ray-type tube

17
315/13.11

Storage tubes

22
315/411

Power supply from deflection circuit source

396
315/8.51

Pulse storing

17
315/8.61

Plural cathode-ray tubes or ray-type tubes

2
315/30

Ray modulation

23
315/10

With radiant energy sensitive control means

80
315/11

With secondary emission stage in the cathode-ray tube

13
315/11.5

Color convergence controlled by photodetector

15
315/12.1

With secondary emission stage in the cathode-ray tube

44
315/DIG.3

Circuit for ion gauges and pressure gauges

0
315/32

Combined load device or load device temperature modifying means and electrical circuit device structure

88
315/74

Automatic shunt circuit closing or cut-out switch

105
315/75

Shunt circuit closing

23
315/39

Discharge device load with distributed parameter-type transmission line (e.g., wave-guide, coaxial cable)

436
315/39.3

Traveling wave type with delay-type transmission line

193
315/56

Discharge device load

243
315/63

Discharge control discharge load

23
315/58

Discharge device and circuit impedance

326
315/59

Impedance connected between two electrodes

87
315/61

Discharge control discharge device

22
315/60

Impedance connected to an auxiliary starting electrode

71
315/62

Inductive impedance

49
315/57

Discharge device and transformer

156
315/39.51

Distributed parameter resonator-type magnetron

323
315/39.75

Anode with plural cavities

90
315/39.65

Having diverse size resonators

16
315/39.73

Interdigital electrode

12
315/39.71

Magnetic field generating and pole structure

77
315/39.67

Tubular anode with eccentric or axially displaced cathode

21
315/39.55

Variable tuning

34
315/39.57

Electron emission type

25
315/39.61

Movable tuning element (e.g., slug)

36
315/39.59

Thermal or magnetic actuator

10
315/39.63

With control electrode, secondary emitter, or auxiliary anode or cathode

38
315/39.53

With output-coupling means

107
315/39.77

With resonant cavity coupled to anode

49
315/39.69

With strapping for resonant structure

36
315/55

Electric generator or piezoelectric device

30
315/73

Electric switch inside evacuated or gas filled envelope

166
315/40

Electrode formed as inductive impedance

4
315/49

Filament or electric heater in series with a discharge device load

70
315/46

Filament, electric heater, or resistance in shunt with the discharge electrodes of a discharge device load

74
315/47

Automatic switch in the shunt circuit

58
315/48

Cathode or cathode heater in the shunt circuit

14
315/41

Inductive impedance connected between electrodes of a discharge device load

12
315/43

Connected to control electrode

0
315/44

With capacitive impedance connected to the control electrode

7
315/42

Connected to plural anodes or plural cathodes

3
315/45

With diverse-type impedance

2
315/71

Load device and impedance

145
315/72

Load device and periodic electric switch

55
315/70

Load device and transformer

63
315/50

Load device temperature-modifying means combined with or forming circuit impedance means

61
315/64

Multiple filament load devices

37
315/65

Automatic substitution of the filament

25
315/67

Diverse resistance filaments

11
315/69

Plural filaments energized in parallel

10
315/66

Series connected filaments

10
315/68

Three or more controlled filament circuits

12
315/51

Plural circuit elements

100
315/52

Plural impedance elements

20
315/53

Diverse types of impedances

53
315/54

Plural inductive impedances

6
315/35

Plural discharge device loads

25
315/37

Cathode-anode circuit connected to the discharge control electrode of another discharge device load (e.g., cascade)

0
315/38

Corresponding electrodes connected by a circuit impedance (e.g., push-pull)

2
315/36

Series connected discharge devices

41
315/33

Portable self-contained

26
315/34

With antenna

27
315/227R

Condenser in the supply circuit

129
315/227A

Arc machining

3
315/241R

Condenser in shunt to the load device and the supply

234
315/241P

Photoflash

410
315/241S

Strobe lights

171
315/242

With an inductance in the circuit

57
315/243

Inductance in series with the load device and the supply

86
315/237

Discharge control discharge device load

10
315/238

Condenser in the control circuit

14
315/240

Electric switch in the condenser circuit

178
315/236

Electromagnetic influenced discharge device load

10
315/244

Inductance in the condenser circuit

489
315/233

Plural cathode and/or anode discharge device load

2
315/235

Condenser connected to plural cathodes or anodes

8
315/234

Condenser in the auxiliary starting electrode circuit

16
315/228

Plural load device systems

32
315/229

Condenser connected to plural cathodes or anodes of asymmetrical discharge device loads

14
315/232

Condenser in shunt to load and supply

34
315/230

Discharge control discharge device loads

3
315/231

Plural series connected condenser and load device circuits

12
315/245

Resistance in the condenser circuit

59
315/239

Transformer in the condenser load device circuit

110
315/108

Confined gas or vapor-type load device with pressure regulating means

32
315/109

Auxiliary discharge type

5
315/110

Valve controlled

10
315/291

Current and/or voltage regulation

4142
315/307

Automatic regulation

3483
315/308

Regulator responsive to plural conditions

1177
315/310

Shunted impedance-type regulator

61
315/309

Thermal responsive regulator

287
315/311

Variable impedance-type regulator

118
315/302

Current generator control

80
315/303

Control of the prime mover

3
315/304

Plural field-type generator

3
315/305

Three or more fields

3
315/292

Keyboard operated or pattern controlled regulator

161
315/294

Plural load device regulation

640
315/297

Automatic regulation

440
315/296

Inverse control of load devices

8
315/298

Mechanically connected regulators

1
315/295

Regulator selectively connectable to plural circuits

114
315/299

Plural regulators

146
315/300

Current generator control

43
315/301

Plural automatic regulators

21
315/293

Pre-selectable regulator systems

79
315/306

Regulator in shunt to the load device

66
315/DIG.4

Dimming circuit for fluorescent lamps

726
315/200R

Discharge device and/or rectifier in the supply circuit

332
315/208

Discharge control discharge device in the supply circuit

165
315/207

Discharge device and/or rectifier in shunt to the load device

111
315/206

Discharge device and/or rectifier in the primary circuit of the supply transformer

83
315/200A

Flashers

346
315/202

Plural cathode and/or anode discharge device load

6
315/203

Discharge device or rectifier in the auxiliary starting electrode circuit

12
315/204

Discharge control discharge device in the auxiliary electrode circuit

10
315/205

Plural discharge devices and/or rectifiers in the supply circuit

276
315/201

Plural load device systems

62
315/111.01

Discharge device load with fluent material supply to the discharge space

160
315/111.81

Electron or ion source

814
315/111.91

Gas ionization type (e.g., ion pump or gauge source)

249
315/111.21

Plasma generating

1231
315/111.31

With extraction electrode

183
315/111.41

With magnetic field

438
315/111.61

Acceleration

135
315/111.51

Induction type

420
315/111.71

Plasma containment

255
315/111.11

With tangential fluent material supply

27
315/326

Discharge device load

120
315/349

Discharge control discharge device load

56
315/355

Condenser in the control circuit

9
315/356

Inductance in the control circuit

4
315/350

Plural control currents and/or potentials

19
315/351

Plural pulsating or a.c. currents and/or potentials

11
315/352

Rectifier and/or discharge device in the control circuit

18
315/353

With condenser in the control circuit

1
315/354

Transformer in the control circuit

10
315/327

Discharge drawing-type discharge device

6
315/333

Automatic cut-out for the electrode moving device circuit

1
315/330

Auxiliary starting electrode type

33
315/331

Movable auxiliary starting electrode

6
315/332

Automatic switch in the electrode moving device circuit

2
315/328

Tilting discharge device

1
315/329

Electrically controlled tilting

2
315/344

Electromagnetic influenced discharge device

284
315/346

Plural current supply to the electromagnet

2
315/348

Pulsating or a.c. supply to the electromagnet

16
315/345

Rail-type discharge device load

2
315/347

Series connected with the load device

8
315/357

Movable electrode discharge device

12
315/334

Plural cathode and/or anode discharge device load

39
315/335

Auxiliary starting electrode-type discharge device

54
315/336

Plural auxiliary starting electrode

13
315/339

Discharge control discharge device load

17
315/337

Diverse potentials for the discharge electrodes

32
315/338

Electromagnetic influenced discharge device

21
315/358

Plural gases or vapors in the discharge device

38
315/340

With de-ionizing means in the cathode-anode circuit

33
315/341

With plural discharge control devices

9
315/342

Diverse types

5
315/343

Plural electromagnetic devices

5
315/362

Electric switch in the supply circuit

394
315/DIG.1

Fluorescent lamp circuits with more than two principle electrodes

32
315/500

High energy particle accelerator tube

285
315/506

Electrostatic accelerator means

107
315/501

Magnetic field acceleration means

156
315/504

Betatron

65
315/502

Cyclotron

115
315/505

Linear accelerator (linac)

295
315/503

Synchrotron

145
315/507

With injection or extraction means

156
315/DIG.2

High frequency starting operation for fluorescent lamp

148
315/177

Load device in the primary and secondary circuit of the supply transformer

54
315/363

Miscellaneous systems

86
315/209R

Periodic switch in the supply circuit

1992
315/209CD

Capacitor dischargeneous ignition systems

190
315/224

Impedance or current regulator in the supply circuit

2332
315/218

Magnetoelectric generator supply

29
315/209M

Miscellaneous ignition systems

47
315/225

Periodic switch cut-out

418
315/219

Periodic switch in the primary circuit of the supply transformer

759
315/223

Condenser or inductance in the primary circuit

83
315/222

Plural interrupted transformer coil circuits

18
315/220

Plural transformers in the supply circuit

77
315/221

Secondary conductively connected to the primary

30
315/209PZ

Piezoelectric ignition systems

69
315/210

Plural load device systems

134
315/211

Distributor type periodic switch means

13
315/216

Plural electrically operated switches

26
315/212

Transformer in the supply circuit

23
315/213

Distributor switch means in the primary circuits of plural transformers

17
315/214

With additional periodic switch in the primary circuit

5
315/215

With additional periodic switch in the distributor switch means circuit

5
315/217

Periodic switch selectively connectable to plural load device circuits

16
315/226

Plural periodic switches or multiple contact periodic switch

288
315/209SC

Silicon controlled rectifier ignition

107
315/209T

Transistorized ignition systems

202
315/361

Plural control stations

39
315/178

Plural diverse-type load devices

56
315/182

Electric discharge device load

19
315/183

Plural diverse discharge device loads

15
315/179

Series connected diverse-type load devices

29
315/180

Plural diverse discharge device load

7
315/181

Asymmetrical discharge device load

6
315/312

Plural load device systems

1270
315/313

Electric switch in the supply circuit

115
315/322

Alternate circuit closing

30
315/316

Keyboard or pattern controlled switch

154
315/320

Plural switches

91
315/321

Master circuit closing switch

18
315/314

Pre-selectable switching systems

55
315/315

Electrically controlled load device switch

73
315/317

Three or more controlled load device circuits

70
315/318

Group control systems

145
315/319

Four or more groups

13
315/324

Plural discharge device loads

276
315/325

Discharge control discharge device loads

31
315/323

Sequential starting

111
315/160

Plural power supplies

100
315/173

Condenser in one of the supply circuits

51
315/171

Discharge device and/or rectifier in one of the supply circuits

67
315/175

Diverse-type current supplies

53
315/176

Simultaneous application to the load device

106
315/172

Periodic switch in one of the supply circuits

54
315/167

Plural cathode and/or anode load device

75
315/168

Diverse type current supplies to auxiliary and principal electrodes

28
315/169.1

Diverse-type energizing or bias supplies to different electrodes

1339
315/169.3

Electroluminescent device

2502
315/169.4

Gas display panel device

1190
315/169.2

Including shifting of register, counter, or display

298
315/174

Plural diverse pulsating or a.c. supplies

64
315/161

Plural load devices

53
315/165

Diverse type current supplies

12
315/166

Simultaneous application to a load device

14
315/162

Diverse type load devices

7
315/163

Simultaneous application of diverse type current supplies to a load device

10
315/164

Series connected current supplies

11
315/170

Series connected current supplies

28
315/185R

Plural series connected load devices

465
315/185S

Christmas lights

365
315/192

Combined with parallel connected load device

154
315/187

Condenser in the supply circuit

44
315/188

Condenser in shunt to load and supply

20
315/191

Convertible to parallel connected

20
315/189

Discharge device loads

50
315/190

Asymmetrical discharge device loads

3
315/193

Electric switch controlled load device

104
315/186

Periodic switch in the supply circuit

68
315/137

Polyphase a.c. supply

15
315/138

M phase to n phase (e.g., phase splitters)

1
315/139

Polyphase supply circuit

2
315/140

Phase multiplying

1
315/147

Plural cathode and/or anode discharge device load

13
315/148

Discharge control discharge device

4
315/146

Plural discharge control discharge device load devices

5
315/141

Transformer in the supply circuit

15
315/143

Convertible transformer connections

1
315/145

Plural cathode and/or anode load device

6
315/144

Plural load devices

13
315/142

With interphase transformer in the supply circuit

2
315/246

Pulsating or a.c. supply

592
315/268

Discharge control discharge device load

17
315/275

Condenser in the control circuit

9
315/270

Plural control potentials

2
315/271

Plural pulsating and/or a.c. potentials

6
315/272

Rectifier and/or discharge device in the control circuit

39
315/273

With condenser in the control circuit

14
315/274

Transformer in the control circuit

172
315/269

With plural discharge control devices

4
315/267

Electromagnetic influenced discharge device load

78
315/283

Inductance in the supply circuit

155
315/284

Variable inductance

52
315/285

Relatively movable core and coil-type inductance

3
315/286

Biased movable part with supply current controlled movement

1
315/248

Induction-type discharge device load

673
315/287

Periodic-type current and/or voltage regulator in the supply circuit

222
315/260

Plural cathode and/or anode discharge device load

40
315/261

Auxiliary starting electrode-type discharge device load

17
315/264

Impedance in the auxiliary electrode circuit

10
315/263

Inductance or potential surge generator in the auxiliary electrode circuit

9
315/262

Transformer or auxiliary winding in the auxiliary electrode circuit

4
315/265

Full wave-type system

7
315/266

Transformer in the supply circuit

6
315/250

Plural load device systems

118
315/252

Discharge control discharge device loads

2
315/253

Full wave systems with asymmetrical discharge device loads

6
315/258

Inductance in the supply circuit

18
315/259

Variable inductance

6
315/251

Inverse parallel connected asymmetrical discharge device loads

14
315/254

Transformer in the supply circuit

70
315/255

Plural transformers in the supply circuit

37
315/256

Primaries in series

29
315/257

With plural secondary or tapped secondary

32
315/249

Potential node-type discharge device load

5
315/276

Transformer in the supply circuit

611
315/280

Convertible to inductance

5
315/279

Current regulator in the primary circuit

102
315/277

Plural transformers in the supply circuit

189
315/282

Regulating transformer

187
315/281

Relatively movable core and coil-type transformer

12
315/278

Three or more coil-type transformers

174
315/247

With power factor control device

811
315/84.51

Pulse storing systems of the gaseous discharge-tube type

10
315/84.61

With plural cathode or anode tube

7
315/359

Pyro-electric device load

2
315/194

Regulation of the control current and/or potential applied to discharge control discharge device loads by phase shifting means

282
315/199

Discharge control discharge device in the control circuit

99
315/195

Plural load device systems

27
315/198

Discharge control discharge device in the control circuit

16
315/196

Inverse parallel connected asymmetric load devices

3
315/197

Discharge control discharge device in the control circuit

6
315/76

Special application

108
315/84

Door or closure controlled load device

62
315/77

Vehicle

394
315/82

Head light systems

664
315/83

Alternate circuit closing

159
315/80

Load device controller combined with vehicle controller

90
315/81

Steering mechanism controlled

21
315/78

Vehicle motor or vehicle motion driven generator

29
315/79

Vehicle or engine speed controlled

31
315/DIG.7

Starting and control circuits for gas discharge lamp using transistors

1146
315/DIG.5

Starting and operating circuit for fluorescent lamp

772
315/289

Surge generator or inductance in the supply circuit

249
315/290

Circuit interrupter in the inductance circuit

187
315/184

Three or more load devices connected between diverse pairs of paired conductors

11
315/288

Three or more wire distribution systems

16
315/360

Time-controlled

694
315/119

With automatic shunt and/or cutout

222
315/124

Auxiliary electrode controlled

5
315/120

Combined with signal, indicator, or alarm

38
315/121

Plural load device systems

43
315/122

Series connected load devices

85
315/123

Plural shunts and/or cut-outs

29
315/125

Shunt circuit closing

31
315/126

With compensating impedance

11
315/127

Supply circuit current and/or potential actuated switch

145
315/128

Plural switch operating means

29
315/94

With cathode or cathode heater supply circuit

158
315/107

Automatic cut-out or voltage regulator in the cathode or heater circuit

165
315/102

Delayed application of the discharge potential

40
315/104

Thermostatic controlled delaying means

31
315/103

With surge generator in the discharge circuit

19
315/101

Discharge device and/or rectifier in the cathode or heater circuit

140
315/98

Plural cathodes or heaters in the load device

49
315/99

Series connected cathodes or heaters

38
315/100

Thermostatic switch in the series circuit

40
315/95

Plural load device systems

13
315/97

Pulsating or a.c. supply to the cathode or heater circuit

59
315/96

Series connected cathodes or heaters

22
315/105

Pulsating or a.c. supply to the cathode or heater circuit

196
315/106

Automatic cut-out or voltage regulator in the cathode or heater circuit

262
315/85

With electromagnetic wave radiation preventing or shielding means

245
315/112

With load device temperature modifier

134
315/117

Automatic control of the temperature modifier

95
315/115

Electric heater for the load device

38
315/116

Automatic cut-out or voltage regulator for the heater circuit

43
315/118

Load device circuit controlled by the temperature modifying medium

73
315/113

Plural load device systems

25
315/114

Electric heater for the load devices

5
315/149

With radiant energy sensitive control means

413
315/157

Discharge control discharge device load controlled by the radiant energy responsive device

72
315/159

Electric switch controlled by the radiant energy responsive device

356
315/151

Load device irradiating the radiant energy responsive device

290
315/152

Plural load devices

127
315/153

Selective energization of the load devices

59
315/154

Selective electric switch controlled by the radiant energy responsive device

63
315/155

Plural radiant energy responsive devices

119
315/156

Radiant energy control of an electric discharge device in the supply circuit of the load device

139
315/158

Radiant energy controlled regulation of the current supply for the load device

405
315/150

Radiant energy responsive load device

126
315/129

With signal, indicator, or alarm

179
315/135

Discharge device and/or rectifier in the signal circuit

62
315/136

Electrically operated switch controlling the signal circuit

90
315/130

Plural load device systems

73
315/131

Selective indication of the load device

42
315/132

Plural signals, indicators, or alarms

26
315/133

Plural signals, indicators, or alarms

63
315/134

Radiant energy responsive control type

60
 
 
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