Paul L. Ruben

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Adaptor for overhead projector

Optics: image projectors – Film gate – And lens support
Patent

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Camera

Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent

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Compact small format zoom lens

Optical: systems and elements – Lens – With variable magnification
Patent

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Imaging system to combine disparate fields of view

Optical: systems and elements – Single channel simultaneously to or from plural channels – By partial reflection at beam splitting or combining surface
Patent

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Lensless camera viewfinder

Patent

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Profile ID: LFUS-PAI-P-153105

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