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Digital analyzer of spectrum of signal frequency-quantized and coded for indentification of several particular frequencies
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Timed connection network for telephone circuit - has two=way conversation selection elements which include timed switches and memory circuits
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Fast sequential adder
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Stochastic demodulator for phase modulated signals, operating in time sharing on multiple channels
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Plotter for telephone calculators
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Demodulating a differential phase-modulated signal
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Plug-in cable connector - has locking member manually engageable in one connector part and engageable in recess of other by action of slide
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DIGITAL TRANSMISSION ARRANGEMENT
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Flight-control electro-hydraulic simulator
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Connector for printed circuit boards - has two interacting parts featuring coding prongs and retainer tongue for boards
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Digital interpolator network for time-sharing processing on multiple channels
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Ringing circuit for centrally controlled telephone exchange junction - has alternating signal source, and bipolar electronic switch output connected to subscriber and timer