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

Durst AG Fabrik Fototechnischer Apparate

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Apparatus for the determination of the color composition of the

Optics: measuring and testing – By shade or color – Photography
Patent

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Circuit for the control of exposure time in photographic enlargi

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

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Color filter determining apparatus with indication of the color

Optics: measuring and testing – Refraction testing – Prism engaging specimen
Patent

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Color mixing head for a photographic enlarging apparatus

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

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Illuminating apparatus with a light control channel for photogra

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

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Profile ID: LFUS-PAI-P-525755

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