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US4002964A
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Temperature compensation technique
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US3866302A
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Method of making a panel meter construction
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US3836847A
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Circuit for measuring an unknown resistance by using a voltage ratio
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US3816803A
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Charging a capacitor to represent sum and difference voltages
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US3833903A
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Compensated voltage-controlled oscillator particularly for analog to digital converters
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US3878534A
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Bipolar floating input, particularly for digital panel meters
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US3780353A
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Panel meter construction
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US3750146A
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Capacitively coupled reference signal and associated circuitry particularly for analog to digital, digital to analog converters and the like
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US3757214A
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Programmable multi mode phase sensitive voltmeter
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US3751717A
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Bipolar floating input, particularly for digital panel meters
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US3798636A
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Series-shunt switching pair, particularly for synchro to digital conversion, dc or ac analog reference multiplying or plural synchro multiplexing
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US3805145A
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Operational amplifier stabilized power supply
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US3718923A
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Bipolar floating input,particularly for digital panel meters
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US3716800A
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Sample and hold circuit
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US3696403A
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Low level conversion system
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US3665652A
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Grinding system
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US3660694A
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Current source
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US3717033A
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Ultrasonic apparatus, particularly for thermometry
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US3610953A
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Switching system
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US3649924A
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Sampling amplifier
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