Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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06/15/1976 | US3964039 Luminescent solid state status indicators |
06/15/1976 | US3964008 Target reset mechanism |
06/15/1976 | US3963909 Method and apparatus for computation in a kinetic analyzer |
06/08/1976 | US3962694 Method and apparatus for monitoring an electrically actuated tool |
06/08/1976 | US3962631 Circuit for determining a measure value of a rectified a-c voltage |
06/08/1976 | US3962630 Electrical continuity and voltage testing device |
06/01/1976 | US3961253 Electrical voltage indicating device |
05/25/1976 | USRE28833 Analogue to digital converter |
05/25/1976 | US3959786 Isolated two-wire transmitter |
05/25/1976 | US3959694 Electrical circuit protection apparatus |
05/25/1976 | US3959667 Overcurrent trip device |
05/18/1976 | US3958212 Power failure warning system |
05/18/1976 | US3958170 Full wave rectifiers |
05/18/1976 | US3958132 Slope change detector |
05/18/1976 | US3957592 Measurement of polarographic current |
05/11/1976 | US3956697 Voltage detector for detecting different voltage levels in conductors of an electrical power line |
05/04/1976 | US3955139 Zeroing circuit |
04/27/1976 | US3953793 Optimal determination of signals affected by interference or disturbance |
04/20/1976 | US3952247 Level indicating apparatus for P.C.M. transmitting system |
04/13/1976 | US3950742 Adjustable line isolation monitor |
04/13/1976 | US3950699 Device for measuring a signal having a very high noise level |
04/06/1976 | US3949294 Level indicating system |
03/30/1976 | US3947761 Peak level indicator |
03/30/1976 | US3947706 Voltage and temperature compensated linear rectifier |
03/16/1976 | US3944921 Logic level test probe with grated oscillator |
03/16/1976 | US3944920 Current measurement |
03/16/1976 | US3944919 Direct current measuring system for rectifiers |
03/16/1976 | US3944906 Detector device for converting A.C. inputs to an D.C. output and a system for using the same |
03/16/1976 | US3944903 Position transducer arrangement |
03/16/1976 | US3944370 Exposure time indication apparatus |
03/09/1976 | US3943437 Apparatus for investigating the electrostatic properties of powders |
03/09/1976 | US3943435 Transformer having improved voltage and phase characteristics |
03/09/1976 | US3943367 High frequency optically coupled differential voltage probe with logarithmic response |
03/09/1976 | US3943349 Method and device for recording, in real time, non uniformly variable data with compression of data during periods of relatively slow variation thereof |
03/02/1976 | US3942095 AC-to-DC converter system |
02/24/1976 | US3940699 Radio frequency energy signalling apparatus |
02/24/1976 | US3940692 Apparatus for monitoring recurrent waveforms |
02/24/1976 | US3940679 Nickel-cadmium battery monitor |
02/17/1976 | US3939433 Feedback circuit |
02/17/1976 | US3939365 Pulse peak detector |
02/10/1976 | US3938131 Energizing circuit for a visual display element |
02/10/1976 | US3938040 Apparatus for measuring a signal voltage including a current source with a control input on which said signal appears |
02/10/1976 | US3937989 Temperature discrimination apparatus |
02/03/1976 | US3936720 Half-wave rectifier circuit |
01/27/1976 | US3935512 Circuit for the compensation of current interference signals |
01/20/1976 | US3934239 Adjustable electronic load-alarm relay |
01/20/1976 | US3934195 Portable electric capacitor tester using an LED indicator |
01/20/1976 | US3934188 Self-testing battery discharge indicator |
01/20/1976 | US3934136 Threshold signal circuitry for scanning apparatus |
01/13/1976 | US3932797 Self-testing battery discharge indicator |