4. Optics: image projectors
  5. Selective projection on distant or cabinet screen

Robert R. Parker

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Automatic focusing system for projectors

Optics: image projectors – Selective projection on distant or cabinet screen
Patent

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Changeover control arrangement for projection apparatus

Optics: motion pictures – With sound accompaniment – Selectively operable plural records – recorders or reproducers
Patent

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Computer controlled slide projector interface arrangement

Optics: image projectors – Selective data retrieval
Patent

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Computer controlled video device and slide projector interface a

Boots – shoes – and leggings
Patent

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Control arrangement and method for video tape recorder

Dynamic magnetic information storage or retrieval – Record editing
Patent

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Profile ID: LFUS-PAI-P-702843

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