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

David L. Luger

Inventor

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Cerumen block for sound delivery system

Acoustics – Anatomic or prosthetic relation – Ear and mouth
Patent

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Communications earpiece

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

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Two-way communication earpiece

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Having acoustic wave modifying structure
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1049263

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