4. Radiant energy
  5. Photocells; circuits and apparatus
  6. Optical or pre-photocell system

Evgeny Frumker

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Method and system for evaluating optical disturbances...

Optics: measuring and testing – Refraction testing
Reexamination Certificate

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Object detection method and system

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

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Object detection method and system

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

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Profile ID: LFUS-PAI-P-2851627

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