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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
Reexamination Certificate

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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
Reexamination Certificate

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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
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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
Reexamination Certificate

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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
Reexamination Certificate

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Hearing aid with directional microphone system, and method...

Electrical audio signal processing systems and devices – Hearing aids – electrical – Directional
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Hearing aid with enhanced high frequency reproduction and...

Electrical audio signal processing systems and devices – Hearing aids – electrical – Frequency transposition
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Hearing aid with error protected data storage

Electrical audio signal processing systems and devices – Hearing aids – electrical
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Hearing aid with external frequency control

Electrical audio signal processing systems and devices – Hearing aids – electrical – Remote control – wireless – or alarm
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Hearing aid with feedback cancellation

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

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Hearing aid with improved percentile estimator

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

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Hearing aid with information signaling

Electrical audio signal processing systems and devices – Hearing aids – electrical – Programming interface circuitry
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