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

Rick T. Mason

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Microphone

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

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Speaker phone

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

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Speaker phone

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

  [ 0.00 ] – not rated yet Voters 0   Comments 0

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Profile ID: LFUS-PAI-P-412766

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