4. Radiant energy
  5. Photocells; circuits and apparatus
  6. Photocell controlled circuit

Hugh P. Campbell

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Optically switched high voltage distributor

Internal-combustion engines – Igniters – Sparkers
Patent

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Precision optical sensor packaging

Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Patent

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VLSI optimized modulator

Fishing – trapping – and vermin destroying
Patent

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Profile ID: LFUS-PAI-P-469414

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