4. Recording, communication, or information retrieval equipment
  5. Computer, data processor equipment

Burton A. Babb

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Acoustic loudspeaker with energy absorbing bearing and voice...

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Electromagnetic
Reexamination Certificate

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Audio speaker system

Acoustics – Anatomic or prosthetic relation – Ear and mouth
Patent

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Broad band dynamic loudspeaker

Acoustics – Anatomic or prosthetic relation – Ear and mouth
Patent

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Broad band dynamic loudspeaker

Patent

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Broad-band acoustic speaker

Acoustics – Anatomic or prosthetic relation – Ear and mouth
Patent

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Profile ID: LFUS-PAI-P-988

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