4. Recording, communication, or information retrieval equipment
  5. Video or audio transmission, recording or playback equipment
  6. Telephone equipment

Keizou Kumai

Inventor

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Display system

Computer graphics processing and selective visual display system – Image superposition by optical means
Reexamination Certificate

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Head mounted display

Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent

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Head-mounted display device

Computer graphics processing and selective visual display system – Image superposition by optical means – Operator body-mounted heads-up display
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1934651

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