4. Television
  5. Two-way video and voice communication

Fred Vincent Richard

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Front illuminator for a liquid crystal display and method of...

Liquid crystal cells – elements and systems – Particular structure – Particular illumination
Reexamination Certificate

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Front illuminator for a liquid crystal display and method of...

Liquid crystal cells – elements and systems – Particular structure – Particular illumination
Reexamination Certificate

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Gradient index magnifying lens

Optical: systems and elements – Lens – With viewed object or viewed field illumination
Reexamination Certificate

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Orthogonal coupled transceiver

Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Reexamination Certificate

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Teleconference system with personal presence cells

Television – Two-way video and voice communication
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2073856

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