4. Optics: motion pictures
  5. With nonrewinding film strip
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Apparatus for the endless projection of a cinematographic film

Optics: motion pictures – With nonrewinding film strip – Coil type
Patent

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Cartridge for audio-visual projectors

Optics: motion pictures – With nonrewinding film strip – Coil type
Patent

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Combination film and film supply and take-up system cover

Optics: motion pictures – With nonrewinding film strip – Coil type
Patent

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Platter feed safety

Optics: motion pictures – With nonrewinding film strip – Coil type
Patent

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