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Class Information
Number: 324/131.11
Name: Electricity: measuring and testing >

Sub-classes under this class:

Class Number Class Name Patents
324/158.1 Miscellaneous 3,073
324/160 Electrical speed measuring 271
324/200 Magnetic 107
324/300 Particle precession resonance 652
324/323 Of geophysical surface or subsurface in situ 196
324/376 Of subsurface core sample 59
324/378 Internal-combustion engine ignition system or device 114
324/403 Electric lamp or discharge device 42
324/415 Electromechanical switching device 152
324/425 Electrolyte properties 244
324/451 A material property using thermoelectric phenomenon 31
324/452 A material property using electrostatic phenomenon 158
324/457 Electrostatic field 318
324/459 Using ionization effects 111
324/500 Fault detecting in electric circuits and of electric components 417
324/557 For insulation fault of noncircuit elements 178
324/600 Impedance, admittance or other quantities representative of electrical stimulus/response relationships 174
324/66 Conductor identification or location (e.g., phase identification) 303
324/71.1 Determining nonelectric properties by measuring electric properties 690
324/72 Testing potential in specific environment (e.g., lightning stroke) 454
324/73.1 Plural, automatically sequential tests 1,076
324/74 Testing and calibrating electric meters (e.g., watt-hour meters) 204
324/76.11 Measuring, testing, or sensing electricity, per se 560
324/800 Divining rods 1

Patents under this class:

Patent Number Title Of Patent Date Issued

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