4. Electrical audio signal processing systems and devices
  5. Electro-acoustic audio transducer
  6. Detail of mechanical vibration coupling to transducer
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Acoustic-electric transducer, electronic device, method, and...

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Detail of mechanical vibration coupling to transducer
Reexamination Certificate

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Audio-band electromechanical vibration converter

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Detail of mechanical vibration coupling to transducer
Patent

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Loudspeaker

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Detail of mechanical vibration coupling to transducer
Reexamination Certificate

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Loudspeaker sound modulation apparatus

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Detail of mechanical vibration coupling to transducer
Reexamination Certificate

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Loudspeaker sound modulation appliance

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Detail of mechanical vibration coupling to transducer
Reexamination Certificate

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Mount for underwater acoustic projector

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Detail of mechanical vibration coupling to transducer
Reexamination Certificate

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Sound pickup and amplifier apparatus for vibrating strings

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Detail of mechanical vibration coupling to transducer
Patent

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Subwoofer speaker system

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Detail of mechanical vibration coupling to transducer
Patent

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Timepiece with sound generator

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Detail of mechanical vibration coupling to transducer
Reexamination Certificate

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