4. Telecommunications
  5. Transmitter and receiver at same station
  6. Radiotelephone equipment detail

Melvin Frerking

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Hearing assistive system with low power interface

Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate

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Presence activated hearing assistive system

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

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Profile ID: LFUS-PAI-P-3190234

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