4. Electrical audio signal processing systems and devices
  5. Electro-acoustic audio transducer
  6. Electromagnetic

Philip Jeffrey Anthony

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Elliptical dome for high frequency transducer

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

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Loudspeaker

Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Speaker or housing therefor
Design Patent

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Loudspeaker drive unit

Acoustics – Diaphragm – Mounting or suspension means
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2730967

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