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Patent Number Title Of Patent Date Issued
4021761 Filter circuit having an acoustic surface-wave filter device May. 3, 1977
4021760 EMP circuit board filter using MOV devices May. 3, 1977
4021759 EMP line filter using MOV devices May. 3, 1977
4021758 Direct modulation 4 phase PSK modulator May. 3, 1977
4021757 Phase lock-loop modulator using an arithmetic synthesizer May. 3, 1977
4021756 Electric remote control transmitter May. 3, 1977
4021755 Microwave oscillator having negative resistance diode inductively and capacitively mounted in wa... May. 3, 1977
4021754 Variable curvature optics for lasers May. 3, 1977
4021753 Free expansion nozzle for gas dynamic lasers May. 3, 1977
4021752 Phase locked loop for use with local oscillator May. 3, 1977
4021751 Field effect transistor amplifier May. 3, 1977
4021750 Broad-band TRAPATT amplifier having a tapered idler circuit May. 3, 1977
4021749 Signal amplifying circuit May. 3, 1977
4021748 Amplifier with field effect transistors having triode-type dynamic characteristics May. 3, 1977
4021747 Signal amplifier circuit using a pair of complementary junction field effect transistors May. 3, 1977
4021746 Transistor amplifier having field effect transistors with stabilized drain bias current May. 3, 1977
4021745 Pulse width modulated signal amplifier May. 3, 1977
4021744 Demodulator for frequency-keyed communication system May. 3, 1977
4021743 Phase logic demodulator May. 3, 1977
4021742 Phase compressor for phase modulated signal May. 3, 1977
4021741 Remote control with reduced responsiveness to interrupted actuating signals May. 3, 1977
4021740 Sinewave clock driver with adjustable delay May. 3, 1977
4021739 Distress signal protection system May. 3, 1977
4021738 Adaptive equalizer with fast convergence properties May. 3, 1977
4021737 System for processing and transmitting audio signals received from a television set for reproduc... May. 3, 1977
4021736 Circuit for measuring the refractory period of a heart pacer May. 3, 1977
4021735 Method and apparatus for making a metal to semiconductor contact May. 3, 1977
4021734 Coulometric measuring instrument with plug adapters for making different measurements May. 3, 1977
4021733 Moisture meters May. 3, 1977
4021732 Convertible electric tester for use with a flashlight and including a jack plug with tubular shu... May. 3, 1977
4021731 Waveguide fault location system May. 3, 1977
4021730 Electrical conductor and short circuit locator May. 3, 1977
4021729 Cross-field ground fault sensor May. 3, 1977
4021728 Magnetic field sensing apparatus for sensing the proximity of a member having high magnetic perm... May. 3, 1977
4021727 Method of an device for non-destructive pressure measurement of fluorescent lamps May. 3, 1977
4021726 Image formation using nuclear magnetic resonance May. 3, 1977
4021725 Mobile mine detection system having plural color display May. 3, 1977
4021724 Apparatus for use in determining a characteristic of a cathode ray tube May. 3, 1977
4021723 Fail-safe transformer circuit May. 3, 1977
4021722 Temperature-sensitive current divider May. 3, 1977
4021721 AC-to-DC converter May. 3, 1977
4021720 Switching device for the control of, and reduction of power losses and radio disturbances associ... May. 3, 1977
4021719 Protective circuit for static inverter May. 3, 1977
4021718 Battery monitoring apparatus May. 3, 1977
4021717 Charging system May. 3, 1977
4021716 Reactionless gimbal drive system May. 3, 1977
4021715 Motor drive for the displacement of a section of an X-ray examination apparatus May. 3, 1977
4021714 Servo system employing a tracking digital angle encoder May. 3, 1977
4021713 Apparatus for sequential measurement of light transmitted through smoke May. 3, 1977
4021712 Control system for automatic transmission for electric automobiles May. 3, 1977


 
 
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