4. Communications: electrical
  5. Continuously variable indicating
  6. Using a particular modulation

Peter F. Bradbeer

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Direction sensitive energy detecting apparatus

Radiant energy – Invisible radiant energy responsive electric signalling – Infrared responsive
Patent

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Proximity detector

Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent

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Proximity detector

Movable or removable closures – Radiant energy control
Patent

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Proximity detectors with dual-speed tracking circuitry

Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent

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Signal compensation circuits

Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent

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Profile ID: LFUS-PAI-P-433597

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