4. Optics: motion pictures
  5. Special effects
  6. Sets

Roy A. Clapp

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Composite photography apparatus and method utilizing a polarizin

Optics: motion pictures – Special effects – Sets
Patent

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Electromagnetically actuated shutter mechanism for cameras

Patent

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High-efficiency illuminating system and method for multi-image p

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

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Light source for photographic color printers

Photocopying – Projection printing and copying cameras – Multicolor picture
Patent

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Multi-image photographic printer

Photocopying – Projection printing and copying cameras – Plural
Patent

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Profile ID: LFUS-PAI-P-215157

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