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

John N. Ghougasian

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Exposure guide

Photocopying – Projection printing and copying cameras – Focus or magnification control
Patent

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Pulse jet engine

Power plants – Reaction motor – Intermittent combustion
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Re-register anchors for film sheet

Photocopying – Projection printing and copying cameras – Methods
Patent

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Variable size and angularly adjustable projection diaphragm

Photocopying – Projection printing and copying cameras – Illumination systems or details
Patent

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Profile ID: LFUS-PAI-P-948869

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