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

Hitoshi Umetsu

Inventor

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

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Fingerprint distinction reader

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

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Optical device fixing device

Optical: systems and elements – Prism
Patent

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Optical device fixing device

Optical: systems and elements – Mirror – With support
Reexamination Certificate

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Profile ID: LFUS-PAI-P-545151

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