4. Communications, electrical: acoustic wave systems and devices
  5. Material level detection, e.g., liquid level

Daniel T. Piholic

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Constant focal length acoustic lens

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

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Driving apparatus

Communications – electrical: acoustic wave systems and devices – Transmitter systems
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Sonic or ultrasonic distance measuring device

Communications – electrical: acoustic wave systems and devices – Material level detection – e.g. – liquid level
Patent

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Tactile hearing aid

Communications – electrical: acoustic wave systems and devices – Receiver circuitry
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Profile ID: LFUS-PAI-P-942535

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