4. Registers
  5. Coded record sensors
  6. Particular sensor structure

Carl Wilson Roy

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Apparatus for constraining moving photographic film

Photocopying – Projection printing and copying cameras – Detailed holder for original
Patent

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Apparatus for reading optical code on moving photographic film

Registers – Coded record sensors – Particular sensor structure
Patent

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Optical code reader head for photographic film

Registers – Coded record sensors – Particular sensor structure
Patent

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Optical notch detector head for photographic film

Radiant energy – Photocells; circuits and apparatus – With circuit for evaluating a web – strand – strip – or sheet
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Profile ID: LFUS-PAI-P-827171

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