4. Telephonic communications
  5. Subscriber line or transmission line interface
  6. Network interface device

VXI Corporation

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Amplifier circuit for electret microphone with enhanced...

Electrical audio signal processing systems and devices – Circuitry combined with specific type microphone or loudspeaker – With electrostatic microphone
Reexamination Certificate

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Amplifier circuit for electret microphone with enhanced...

Electrical audio signal processing systems and devices – Circuitry combined with specific type microphone or loudspeaker
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Apparatus for cord-free hands-free telephony

Telephonic communications – Terminal – Housing or housing component
Reexamination Certificate

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Apparatus for cordless computer telephony

Telephonic communications – Subscriber line or transmission line interface
Reexamination Certificate

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Circuitry for improving performance of electret microphone

Electrical audio signal processing systems and devices – Circuitry combined with specific type microphone or loudspeaker – With electrostatic microphone
Patent

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Profile ID: LFUS-PAI-P-371939

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