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Patent Number Title Of Patent Date Issued
4890043 Arrangement for generating a sawtooth current Dec. 26, 1989
4890042 High efficacy electrodeless high intensity discharge lamp exhibiting easy starting Dec. 26, 1989
4890041 High wattage HID lamp circuit Dec. 26, 1989
4890040 Optically triggered back-lighted thyratron network Dec. 26, 1989
4890039 Fluorescent lamp resonant ballast Dec. 26, 1989
4890038 Power supply circuit for automotive headlamp with combinational switch Dec. 26, 1989
4890037 Apparatus for controlling a vehicle headlamp Dec. 26, 1989
4890036 Miniature traveling wave tube and method of making Dec. 26, 1989
4890035 Discharge electrode with microstructure surface Dec. 26, 1989
4890034 Thyratrons Dec. 26, 1989
4890033 Light-emitting composition and fluorescent lamp Dec. 26, 1989
4890032 Color display tube having electrode converging means Dec. 26, 1989
4890031 Semiconductor cathode with increased stability Dec. 26, 1989
4890030 Metal halide discharge lamp with arc tube temperature equalizing means Dec. 26, 1989
4890029 Electron beam apparatus including plurality of ion pump blocks Dec. 26, 1989
4890028 Rotor for a turbo-generator Dec. 26, 1989
4890027 Dynamic motor controller Dec. 26, 1989
4890026 Electric motor with commutator directly molded on motor shaft and method of construction Dec. 26, 1989
4890025 Electric motor having a protector switch Dec. 26, 1989
4890024 Low-speed high-torque motor Dec. 26, 1989
4890023 Linear induction motor systems Dec. 26, 1989
4890022 Delay circuit device utilizing the Miller effect Dec. 26, 1989
4890021 Noise spike elimination circuit for pulse width modulators Dec. 26, 1989
4890020 Circuit for driving a semiconductor device with protection against transients Dec. 26, 1989
4890019 Bilingual CMOS to ECL output buffer Dec. 26, 1989
4890018 Bipolar-complementary metal oxide semiconductor circuit Dec. 26, 1989
4890017 CMOS-BiCMOS gate circuit Dec. 26, 1989
4890016 Output circuit for CMOS integrated circuit with pre-buffer to reduce distortion of output signal Dec. 26, 1989
4890015 Method and circuitry for controlling the compensation of negative internal ground voltage fluctu... Dec. 26, 1989
4890014 Sequential operation differential current amplifier Dec. 26, 1989
4890013 Circuit for sensing voltages beyond the supply voltage of the sensing circuit Dec. 26, 1989
4890012 An integrated controlled FET switch Dec. 26, 1989
4890011 On-chip substrate bias generating circuit having substrate potential clamp and operating method ... Dec. 26, 1989
4890010 Matched current source serial bus driver Dec. 26, 1989
4890009 Monolithic integrated circuit device Dec. 26, 1989
4890008 Multi-function automatic revolving christmas tree base Dec. 26, 1989
4890007 Carpet mat switch Dec. 26, 1989
4890006 Rotary lock swtich for switching and resetting a computer Dec. 26, 1989
4890005 Standby power supply line voltage fault detector Dec. 26, 1989
4890004 Emergency light control and battery charging system Dec. 26, 1989
4890003 Capacitively buffered power supply for an electronic device Dec. 26, 1989
4890002 Line voltage fault detector for appliance protection Dec. 26, 1989
4890001 Electrical circuit for selectively activating electrical devices Dec. 26, 1989
4890000 Control circuit of the decorative light sets Dec. 26, 1989
4889999 Master electrical load control system Dec. 26, 1989
4889998 Apparatus with four light detectors for checking surface of mask with pellicle Dec. 26, 1989
4889997 Process and device for measuring and processing the displacements between two or more points in ... Dec. 26, 1989
4889996 Method for obtaining a radiation image Dec. 26, 1989
4889995 Apparatus for analysis employing electron Dec. 26, 1989
4889994 Detection of electromagnetic radiation Dec. 26, 1989










 
 
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