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Hearing aid with a ventilation channel that is adjustable in...

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

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Hearing aid with a volume wheel

Electrical audio signal processing systems and devices – Hearing aids – electrical – Specified casing or housing
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Hearing aid with acoustic feedback suppression

Electrical audio signal processing systems and devices – Hearing aids – electrical – Noise compensation circuit
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Hearing aid with adaptive matching of input transducers

Electrical audio signal processing systems and devices – Hearing aids – electrical – Directional
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Hearing aid with adaptive matching of microphones

Electrical audio signal processing systems and devices – Hearing aids – electrical – Directional
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Hearing aid with adaptive microphone matching

Electrical audio signal processing systems and devices – Hearing aids – electrical – Directional
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Hearing aid with adaptive noise canceller

Electrical audio signal processing systems and devices – Hearing aids – electrical – Noise compensation circuit
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Hearing aid with an oscillation detector, and method for...

Electrical audio signal processing systems and devices – Hearing aids – electrical – Spectral control
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Hearing aid with antenna for reception and transmission of...

Electrical audio signal processing systems and devices – Hearing aids – electrical – Specified casing or housing
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Hearing aid with audible alarm

Electrical audio signal processing systems and devices – Hearing aids – electrical – Specified casing or housing
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Hearing aid with audible alarm

Electrical audio signal processing systems and devices – Hearing aids – electrical – Specified casing or housing
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Hearing aid with audible alarm

Electrical audio signal processing systems and devices – Hearing aids – electrical – Remote control – wireless – or alarm
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Hearing aid with automatic microphone balancing and method...

Electrical audio signal processing systems and devices – Hearing aids – electrical – Directional
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Hearing aid with automatic sound storage and corresponding...

Electrical audio signal processing systems and devices – Hearing aids – electrical
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Hearing aid with automatic switching between modes of operation

Electrical audio signal processing systems and devices – Hearing aids – electrical – Directional
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Hearing aid with battery door

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

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Hearing aid with beam forming properties

Electrical audio signal processing systems and devices – Hearing aids – electrical
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Hearing aid with compensation of acoustic and/or mechanical feed

Electrical audio signal processing systems and devices – Hearing aids – electrical – Noise compensation circuit
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Hearing aid with delayed activation

Electrical audio signal processing systems and devices – Hearing aids – electrical
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Hearing aid with different assemblies for picking up further...

Electrical audio signal processing systems and devices – Hearing aids – electrical – Frequency transposition
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