4. Optics: motion pictures
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Cinematograph projectors

Optics: motion pictures – Gates – With curved film plane
Patent

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Cinematographic apparatus

Optics: motion pictures – Camera and/or projector drive mechanisms – With film engaging claws reciprocally driven to engage film
Patent

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Cinematographic apparatus with adjustable shutter means

Optics: motion pictures – Camera and/or projector drive mechanisms – With single frame operation
Patent

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Cinematographic camera

Optics: motion pictures – With support
Patent

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Cinematographic camera

Optics: motion pictures – Special effects – Transition effects
Patent

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Cinematographic optical system

Optics: motion pictures – Stereoscopic cameras and/or projectors
Patent

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Cinematographic viewer-projector

Optics: motion pictures – Removable film strip magazine type
Patent

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Circular projection and display system using segmented trapezoid

Optics: motion pictures – Panoramic picture type
Patent

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Circumferential stereo spectacular with a mosaic in a scene

Optics: motion pictures – Panoramic picture type
Patent

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Circumferential stereo spectacular, 360 degrees horizontally and

Optics: motion pictures – Panoramic picture type
Patent

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Claw feed mechanism

Optics: motion pictures – Camera and/or projector drive mechanisms – With film engaging claws reciprocally driven to engage film
Patent

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Claw mechanism

Optics: motion pictures – Camera and/or projector drive mechanisms – With film engaging claws reciprocally driven to engage film
Patent

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Collapsible stereoscopic viewer and filmstrip holder therefor

Optics: motion pictures – Removable film strip magazine type
Patent

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Collapsible zoetrope

Optics: motion pictures – Picture drum type
Patent

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Color and motion based depth effects

Optics: motion pictures – Special effects – Depth illusion
Patent

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Color motion depth effect system

Optics: motion pictures – Special effects – Depth illusion
Patent

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Color movie film noise reduction system

Optics: motion pictures – With sound accompaniment – Common picture and sound record carrier systems
Patent

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Combination digital and analog soundtrack system and method

Optics: motion pictures – With sound accompaniment – Common picture and sound record carrier systems
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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Combination motion picture camera and viewing apparatus

Optics: motion pictures – Covertible – Camera-projector
Patent

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