4. Photocopying
  5. Projection printing and copying cameras
  6. Illumination systems or details

Roger Timmermans

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Method of forming optical images, a control circuit for use...

Radiant energy – Photocells; circuits and apparatus – Photocell controls its own optical systems
Reexamination Certificate

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Method of forming optical images, apparatus for carrying out...

Photocopying – Projection printing and copying cameras – Illumination systems or details
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2428972

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