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lasermaserhearing aidfeedbackoperational amplifierlinear amplifierradio-frequency amplifiergaincrossed-field amplifieroptical tweezersintegrated circuitvoltage regulatormicrophoneloudspeakerprinted circuitmultiplexingrectifiercomputer circuitryoscillatorelectron tube
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William P. Lear
American engineer and industrialist

Alexander Meissner
Austrian engineer