4. H - Electricity
  5. 04
  6. B

Koki Otsuka

H - Electricity – 04 – B

Inventor

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Inventor

Country: Japan

Speech communication apparatus

H - Electricity – 04 – B
Patent

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Speech communication apparatus equipped with echo canceller

H - Electricity – 04 – M
Patent

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Profile ID: LFCA-PAI-P-1826493

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