LandOfFree - US Patents - Listing for Electrical audio signal processing systems and devices,Circuitry combined with specific type microphone or loudspeaker

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Calibrated microelectromechanical microphone

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

Reexamination Certificate

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Capacitor microphone

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

Reexamination Certificate

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Chip microphone and method of making same

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

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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Condenser microphone

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

Reexamination Certificate

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Condenser microphone

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

Reexamination Certificate

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Condenser microphone

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

Reexamination Certificate

[ 0.00 ] – not rated yet Voters 0 Comments 0

Condenser microphone

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

Reexamination Certificate

[ 0.00 ] – not rated yet Voters 0 Comments 0

Condenser microphone

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

Reexamination Certificate

[ 0.00 ] – not rated yet Voters 0 Comments 0

Condenser microphone apparatus and its connecting apparatus

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

Current feedback system for improving crossover frequency...

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

Current feedback system for improving crossover frequency...

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

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