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Patent Number Title Of Patent Date Issued
4929923 Thin film resistors and method of trimming May. 29, 1990
4929922 Temperature safety device for electric devices May. 29, 1990
4929921 Automatable fuse May. 29, 1990
4929920 Compact circuit breaker with an electronic trip unit May. 29, 1990
4929919 Twin unit circuit breaker with improved magnet structure May. 29, 1990
4929918 Setting and dynamically adjusting VCO free-running frequency at system level May. 29, 1990
4929917 Phase-locked loop circuit May. 29, 1990
4929916 Circuit for detecting a lock of a phase locked loop May. 29, 1990
4929915 Protective device for enlarging the effective diameter of a probe in large diameter wells May. 29, 1990
4929913 GaAs focal plane array readout May. 29, 1990
4929912 Current mirror circuit, and video output amplifier circuit provided with the current mirror circ... May. 29, 1990
4929911 Push-pull output circuit having three transistors May. 29, 1990
4929910 Low current amplifier with controlled hysteresis May. 29, 1990
4929909 Differential amplifier with gain compensation May. 29, 1990
4929908 Gain controllable amplifier circuit May. 29, 1990
4929907 Output amplifier May. 29, 1990
4929906 Amplifier linearization using down/up conversion May. 29, 1990
4929905 Synchronous demodulation circuit for a carrier-modulated television signal May. 29, 1990
4929904 Moisture sensing apparatus with movable probe in combination with an agricultural baler having a... May. 29, 1990
4929903 Method of and apparatus for assessing insulation conditions May. 29, 1990
4929902 Multiple size cable testing device May. 29, 1990
4929901 DC ground fault detection May. 29, 1990
4929900 Method for locating conductive faults in telephone and similar cables May. 29, 1990
4929899 Fluxgate magnetometer apparatus and adjustment method to maintain accuracy over a wide temperatu... May. 29, 1990
4929898 Transient electromagnetic method for detecting irregularities on conductive containers May. 29, 1990
4929897 Method and apparatus for detecting cross sectional area variations in a elongate object by measu... May. 29, 1990
4929896 Transient electromagnetic method for detecting irregularies on conductive containers having vari... May. 29, 1990
4929895 Thickness gauge for moving sheet material with inner and outer flexibly mounted bearings May. 29, 1990
4929894 Method and apparatus for increasing throughput on disk drive quality control testing May. 29, 1990
4929893 Wafer prober May. 29, 1990
4929892 Process for electrically testing a component in transit to assembly and component test chuck May. 29, 1990
4929891 Exciting unit for internal magnet type meters May. 29, 1990
4929890 System for obtaining digital outputs from multiple transducers May. 29, 1990
4929889 Data path chip test architecture May. 29, 1990
4929888 Pin electronics device having a phase adjustment function for IC testers and phase adjustment me... May. 29, 1990
4929887 Electrical outlet monitor May. 29, 1990
4929886 Apparatus for detecting noise in the measurement of very small resistance May. 29, 1990
4929885 Apparatus for measuring ground moisture content of soil May. 29, 1990
4929884 High voltage semiconductor with integrated low voltage circuitry May. 29, 1990
4929883 Circuit for sensing the transistor current waveform May. 29, 1990
4929882 Apparatus for converting DC to DC having non-feed back variable hysteretic current-mode control ... May. 29, 1990
4929881 Probe for nuclear magnetic resonance apparatus May. 29, 1990
4929880 Electronic lock system with battery conservation features May. 29, 1990
4929879 Microstepping of an unipolar stepping motor May. 29, 1990
4929878 Memory mirror control system for vehicles and the like May. 29, 1990
4929877 Automatic garage door operator with remote load control May. 29, 1990
4929876 Electric windshield wiping apparatus May. 29, 1990
4929875 Method to control stops of an intermittently operating driving motor May. 29, 1990
4929874 Vibration control system May. 29, 1990
4929873 Luminaire system May. 29, 1990










 
 
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