4. Measuring and testing
  5. Vibration
  6. By mechanical waves

Torsten Niederdränk

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Acoustic module for a hearing aid device

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

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Acoustic module for a hearing aid device

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

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Cerumen protection system for hearing aids

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Plural or compound reproducers
Reexamination Certificate

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Circuit and method for adaptation of hearing device microphones

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

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Data transmission device for hearing aids

Electrical audio signal processing systems and devices – Hearing aids – electrical – Remote control – wireless – or alarm
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2061887

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