4. Optics: motion pictures
  5. Camera and/or projector drive mechanisms

Yutaka Tokue

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Device for controlling luminous energy

Optical: systems and elements – Light control by opaque element or medium movable in or... – With rotating or pivoting element
Patent

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Sprocket wheel for advancing film and device for advancing film

Optics: motion pictures – Camera and/or projector drive mechanisms
Patent

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Profile ID: LFUS-PAI-P-1202150

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