4. Photocopying
  5. Projection printing and copying cameras
  6. Methods

Robert F. Nepper

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Color printing method

Photocopying – Projection printing and copying cameras – Methods
Patent

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Continuous copier

Photocopying – Projection printing and copying cameras – Combined with or convertible to a contact printer
Patent

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Control circuitry for a continuous copy machine

Photocopying – Projection printing and copying cameras – Combined with or convertible to a contact printer
Patent

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Developer material level sensor

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

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Profile ID: LFUS-PAI-P-531778

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