4. Communications, electrical: acoustic wave systems and devices
  5. Receiver circuitry

Joseph F. Zalesak

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Directional line-hydrophone array calibrator

Communications – electrical: acoustic wave systems and devices – Testing – monitoring – or calibrating
Patent

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Directional low-frequency ring hydrophone

Electrical generator or motor structure – Educational or construction units or kits
Patent

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Low-frequency directional hydrophone

Communications – electrical: acoustic wave systems and devices – Receiver circuitry
Patent

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Method of determining piezoelectric constants of ceramic rings

Measuring and testing – Speed – velocity – or acceleration – Centrifugal weight type
Patent

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Profile ID: LFUS-PAI-P-774585

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