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

Vitold Khvostov

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Eddy-current sensor for coin evaluation

Check-actuated control mechanisms – Including means to test validity of check – By testing material composition
Reexamination Certificate

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Optical sensor with planar wall

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

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Profile ID: LFUS-PAI-P-470603

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