4. Electrical generator or motor structure
  5. Non-dynamoelectric
  6. Piezoelectric elements and devices

Thomas R. Howarth

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Acoustic transducer panel

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

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Lightweight underwater acoustic projector

Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
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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Permanent magnet biased magnetostrictive transducer

Communications – electrical: acoustic wave systems and devices – Signal transducers – Underwater type
Patent

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Piezoelectric acoustic actuator

Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1343585

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