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

Finn Danielsen

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Earwax trap for use with hearing-aid apparatus, and hearing-aid

Acoustics – Anatomic or prosthetic relation – Ear and mouth
Patent

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Electromagnetic feedback reduction in communication device

Electrical audio signal processing systems and devices – Hearing aids – electrical – Noise compensation circuit
Reexamination Certificate

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Method of current management in a battery powered audio device

Electrical audio signal processing systems and devices – Hearing aids – electrical – Specified casing or housing
Reexamination Certificate

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Profile ID: LFUS-PAI-P-301405

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