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Isolator system
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Multiple-feedback amplifier series motor control system
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Adjustable controllable inductance tuning apparatus
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Adjustable controllable inductor apparatus
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Adjustable controllable inductor apparatus
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Remote tuning of oscillator via duplex conductor
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Controllable inductors and methods of assembly
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Static elimination system
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Methods and apparatus for automatic conversion of international morse code signals to teleprinter code
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Controllable inductor
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Radio control apparatus
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Sweep generator methods and apparatus
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Ferrite stabilizing system
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Variable frequency signal generator
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Controllable inductance voltage divider apparatus
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Sweep generator
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Electrically controllable inductor method and apparatus
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Controllable inductor
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System using magnetized controllable inductor operated stepwise to control frequency and the like
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Self centering discriminator and control circuit
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