4. Electrical audio signal processing systems and devices
  5. Electro-acoustic audio transducer
  6. Microphone capsule only

Luigi Pesenti

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Piezoceramic capsule for telephone instruments

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Electrostrictive – magnetostrictive – or piezoelectric
Patent

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Piezoelectric transducer

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Microphone capsule only
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Telephone answering device

Recording – communication – or information retrieval equipment – Computer – data processor equipment
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Profile ID: LFUS-PAI-P-573638

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