4. Communications: electrical
  5. Selective
  6. Having indication or alarm

Joseph L. Percy

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Constrained diaphragm transducer

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

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Expendable sound source

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

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Non-linear acoustic transducer

Communications: electrical – Selective – Having indication or alarm
Patent

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Pressure compensated transducer system with constrained diaphrag

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

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Treatment of body tissue by means of internal cavity resonance

Surgery – Truss – Pad
Patent

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Profile ID: LFUS-PAI-P-875107

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