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

John M. Tamkin

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Chevron correction and autofocus optics for laser scanner

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

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High efficiency laser pattern generator

Optical: systems and elements – Compound lens system – With curved reflective imaging element
Patent

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Scanning fingerprint reading

Optics: measuring and testing – Document pattern analysis or verification
Patent

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Profile ID: LFUS-PAI-P-812880

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