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Class Information
Number: 315/2R
Name: Electric lamp and discharge devices: systems >
Description:










Sub-classes under this class:

Class Number Class Name Patents
315/1 Cathode ray tube circuits 62
315/108 Confined gas or vapor-type load device with pressure regulating means 32
315/111.01 Discharge device load with fluent material supply to the discharge space 160
315/112 With load device temperature modifier 134
315/119 With automatic shunt and/or cutout 222
315/129 With signal, indicator, or alarm 179
315/137 Polyphase a.c. supply 15
315/149 With radiant energy sensitive control means 413
315/160 Plural power supplies 100
315/177 Load device in the primary and secondary circuit of the supply transformer 54
315/178 Plural diverse-type load devices 56
315/184 Three or more load devices connected between diverse pairs of paired conductors 11
315/185R Plural series connected load devices 465
315/194 Regulation of the control current and/or potential applied to discharge control discharge device loads by phase shifting means 282
315/200R Discharge device and/or rectifier in the supply circuit 332
315/209R Periodic switch in the supply circuit 1,992
315/227R Condenser in the supply circuit 129
315/246 Pulsating or a.c. supply 592
315/288 Three or more wire distribution systems 16
315/289 Surge generator or inductance in the supply circuit 249
315/291 Current and/or voltage regulation 4,142
315/312 Plural load device systems 1,270
315/32 Combined load device or load device temperature modifying means and electrical circuit device structure 88
315/326 Discharge device load 120
315/359 Pyro-electric device load 2
315/360 Time-controlled 694
315/361 Plural control stations 39
315/362 Electric switch in the supply circuit 394
315/363 Miscellaneous systems 86
315/500 High energy particle accelerator tube 285
315/76 Special application 108
315/84.51 Pulse storing systems of the gaseous discharge-tube type 10
315/85 With electromagnetic wave radiation preventing or shielding means 245
315/86 Automatic substitution of the power supply 206
315/88 Automatic substitution of the load device or electrode 60
315/94 With cathode or cathode heater supply circuit 158
315/DIG.1 Fluorescent lamp circuits with more than two principle electrodes 32
315/DIG.2 High frequency starting operation for fluorescent lamp 148
315/DIG.3 Circuit for ion gauges and pressure gauges 0
315/DIG.4 Dimming circuit for fluorescent lamps 726
315/DIG.5 Starting and operating circuit for fluorescent lamp 772
315/DIG.7 Starting and control circuits for gas discharge lamp using transistors 1,146


Patents under this class:

Patent Number Title Of Patent Date Issued











 
 
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