4. Photography and optical equipment
  5. Projector or viewer
  6. With provision for transparency magazine

Ehrenreich Photo-Optical Industries Inc.

Corporate Assignee

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Adjustable enlarging easel

Photocopying – Projection printing and copying cameras – Detailed holder for photosensitive paper
Patent

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Camera

Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent

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Camera supporting strap

Package and article carriers – Miscellaneous
Patent

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Easel with masking frame

Photocopying – Projection printing and copying cameras – Detailed holder for photosensitive paper
Patent

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Method and apparatus for making photographic copies

Photocopying – Projection printing and copying cameras – Methods
Patent

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Profile ID: LFUS-PAI-P-1943883

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