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

Tatsuya Nakazawa

Inventor

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Erasure of DTMF signal transmitted as speech data

Telephonic communications – Supervisory or control line signaling – Signal receiver
Reexamination Certificate

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Image display device and stand for image display device

Electricity: motive power systems – Automatic and/or with time-delay means – Movement – position – or limit-of-travel
Reexamination Certificate

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Television receiver

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

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Television receiver

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

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Profile ID: LFUS-PAI-P-2380885

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