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

Eric Fricker

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Loudspeaker enclosure

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

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Single acoustic box with spatial effect for stereophonic musical

Electrical audio signal processing systems and devices – Binaural and stereophonic – Hearing aid
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Profile ID: LFUS-PAI-P-968642

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