LandOfFree - US Patents - Listing for Optics: image projectors,Selective data retrieval

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Selection for microfiche cartridge

Optics: image projectors – Selective data retrieval – Plural picture rows on single microcard

Patent

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Selectively positionable slide tray position sensing arrangement

Optics: image projectors – Selective data retrieval

Patent

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Selector interlock for microfiche cartridge

Optics: image projectors – Selective data retrieval – Plural picture rows on single microcard

Patent

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Shopping aid display viewer

Optics: image projectors – Selective data retrieval

Patent

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Slide projector control apparatus

Optics: image projectors – Selective data retrieval

Patent

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Slide projector having two image-projection systems which operat

Optics: image projectors – Selective data retrieval

Patent

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Slide projector with ergonomic slide selection and access

Optics: image projectors – Selective data retrieval – Plural picture rows on single microcard

Patent

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Slide tray position sensing arrangement for slide projector appa

Optics: image projectors – Selective data retrieval

Patent

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Stop-motion mechanism

Optics: image projectors – Selective data retrieval

Patent

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System for controlling reproduction of audio tape in synchronism

Optics: image projectors – Selective data retrieval – Film strip

Patent

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