4. Photocopying
  5. Contact printing
  6. Light boxes

Hiroshi Hanzawa

Inventor

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Document size sensing having a spectroscope

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

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Image forming apparatus

Photocopying – Contact printing – Light boxes
Patent

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Mimeographic printing machine

Printing – Stenciling – Rotary machines
Patent

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Print image position indication device

Electrophotography – Machine operation – Operator interface
Patent

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Printing machine for booklet-like medium

Typewriting machines – For typing on flat record-medium or against flat platen – For typing on a book
Reexamination Certificate

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Profile ID: LFUS-PAI-P-281515

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