LandOfFree - US Patents - Listing for Optics: image projectors,Slide transfer mechanism

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Slide projector

Optics: image projectors – Slide transfer mechanism

Patent

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Slide projector

Optics: image projectors – Slide transfer mechanism – Gravity operated

Patent

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Slide projector and indexing mechanism for alternate slide trays

Optics: image projectors – Slide transfer mechanism – Slides reciprocated horizontally

Patent

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Slide projector and slide tray

Optics: image projectors – Slide transfer mechanism – Gravity operated

Patent

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Slide projector apparatus

Optics: image projectors – Slide transfer mechanism – Slides reciprocated horizontally

Patent

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Slide projector controllable of its projection time

Optics: image projectors – Slide transfer mechanism – Slides reciprocated horizontally

Patent

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Slide projector drive mechanism for a circular magazine

Optics: image projectors – Slide transfer mechanism – Slides reciprocated horizontally

Patent

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Slide projector for both magazine and single slide projection

Optics: image projectors – Slide transfer mechanism – Slides reciprocated horizontally

Patent

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Slide projector for receiving alternate slide trays of different

Optics: image projectors – Slide transfer mechanism – Slides reciprocated horizontally

Patent

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Slide projector having a partitioned magazine

Optics: image projectors – Slide transfer mechanism – Slides reciprocated horizontally

Patent

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Slide projector system

Optics: image projectors – Slide transfer mechanism – Slides fixed to movable carrier

Patent

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Slide projector system

Optics: image projectors – Slide transfer mechanism – Slides fixed to movable carrier

Patent

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Slide projector with circular slides magazine

Optics: image projectors – Slide transfer mechanism – Gravity operated

Patent

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Slide projector with stationary slide magazines and automatic sl

Optics: image projectors – Slide transfer mechanism – Feeder magazine and receiver magazine

Patent

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Slide projectors

Optics: image projectors – Slide transfer mechanism – Slides fixed to movable carrier

Patent

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Slide viewing apparatus

Optics: image projectors – Slide transfer mechanism – Slides fixed to movable carrier

Patent

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Solar powered heating and ventilation system for vehicle

Optics: image projectors – Slide transfer mechanism – Slides gripped or hooked

Reexamination Certificate

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System and method for calibrating position of microscope...

Optics: image projectors – Slide transfer mechanism

Reexamination Certificate

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Toy film viewer and method of making same

Optics: image projectors – Slide transfer mechanism – Slides fixed to movable carrier

Patent

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Track-type slide projector magazine

Optics: image projectors – Slide transfer mechanism – Slides fixed to movable carrier

Patent

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