4. Communications: electrical
  5. Audible indication
  6. Percussion-type sound producer

Harry D. Smith

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Aircraft engine automatic throttle control with automatic gain p

Registers – Transfer mechanism – Traveling pawl
Patent

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Means to flexibly attach lens frames to temple members

Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Connectors
Patent

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Multiplexed-demultiplexed synchro demodulation apparatus

Communications: electrical – Audible indication – Percussion-type sound producer
Patent

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Semi-automatic takeoff control system for aircraft

Aeronautics and astronautics – Aircraft control – Automatic
Patent

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Solar powered bait box

Fishing – trapping – and vermin destroying – Fishing – Holder
Patent

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Profile ID: LFUS-PAI-P-1072676

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