LandOfFree - US Patents - Listing for Optics: image projectors

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Roll film document image storage and retrieval apparatus and sys

Optics: image projectors – Selective data retrieval – Film strip

Patent

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Roll film reader/printer with manually insertable discrete film

Optics: image projectors – Selective data retrieval – Film strip

Patent

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Roll film reader/printer with manually insertable discrete film

Optics: image projectors – Transparent plate – Plate part of film gate

Patent

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Rotary film strip holding apparatus

Optics: image projectors – Selective data retrieval – Film strip

Patent

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Rotary operation mechanism, electronic apparatus and projector

Optics: image projectors – Miscellaneous

Reexamination Certificate

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Rotary screen for receiving optical images particularly advertis

Optics: image projectors – Plural projection paths with single light source

Patent

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Rotary slide carrier system

Optics: image projectors – Film gate

Patent

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Rotatable slide holder

Optics: image projectors – Film gate

Patent

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Rotating backscreen and/or projectors for off-axis large field o

Optics: image projectors – Reflector

Patent

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Rotational member of projector with improved retention

Optics: image projectors – Lens support – Lens position adjustable

Reexamination Certificate

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Rubber foot mounting structure and projector

Optics: image projectors – Housing

Reexamination Certificate

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