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

Friedrich Papke

Inventor

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Crank drive for a photographic camera

Machine element or mechanism – Mechanical movements – Rotary to or from reciprocating or oscillating
Patent

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Double slide focal plane shutter

Patent

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Mirror reflex camera

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

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Mirror reflex camera

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

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Photographic camera

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

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Profile ID: LFUS-PAI-P-407754

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