4. Measuring and testing
  5. With fluid pressure
  6. Leakage

Henning Bruckhoff

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Headset for a functional device

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

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Headset for fitting of an earpiece

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

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Test device for measuring the fit of hearing aid related devices

Measuring and testing – With fluid pressure – Leakage
Patent

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Profile ID: LFUS-PAI-P-1431153

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