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Electronic theater projector

Optics: motion pictures – Camera and/or projector drive mechanisms – With intermittently driven carrier-engaging sprocket
Patent

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Film drive for motion picture apparatus

Optics: motion pictures – Camera and/or projector drive mechanisms – With intermittently driven carrier-engaging sprocket
Patent

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Film transport system

Optics: motion pictures – Camera and/or projector drive mechanisms – With intermittently driven carrier-engaging sprocket
Patent

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Geneva mechanism and motion picture projector using same

Optics: motion pictures – Camera and/or projector drive mechanisms – With intermittently driven carrier-engaging sprocket
Reexamination Certificate

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Intermittent drive mechanism for film

Optics: motion pictures – Camera and/or projector drive mechanisms – With intermittently driven carrier-engaging sprocket
Patent

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Intermittent film drive for motion picture projector

Optics: motion pictures – Camera and/or projector drive mechanisms – With intermittently driven carrier-engaging sprocket
Patent

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Intermittent prime film mover using multi-toothed wheel drive

Optics: motion pictures – Camera and/or projector drive mechanisms – With intermittently driven carrier-engaging sprocket
Patent

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Mechanical drive arrangements

Optics: motion pictures – Camera and/or projector drive mechanisms – With intermittently driven carrier-engaging sprocket
Patent

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Motion picture film projector

Optics: motion pictures – Camera and/or projector drive mechanisms – With intermittently driven carrier-engaging sprocket
Reexamination Certificate

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Motion picture projection system

Optics: motion pictures – Camera and/or projector drive mechanisms – With intermittently driven carrier-engaging sprocket
Patent

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Motion picture projector with reduced picture jump

Optics: motion pictures – Camera and/or projector drive mechanisms – With intermittently driven carrier-engaging sprocket
Patent

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