4. Acoustics
  5. Anatomic or prosthetic relation
  6. Ear and mouth

Tetsuyuki Manaka

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Microphone holding device

Acoustics – Anatomic or prosthetic relation – Ear and mouth
Patent

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Transceiver having interphone system

Telecommunications – Transmitter and receiver at same station – Convertible
Patent

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Profile ID: LFUS-PAI-P-1121661

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