4. Communications, electrical: acoustic wave systems and devices
  5. Receiver circuitry
  6. Responsive to intruder energy

Russell I. Mason

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Directional sonobuoy

Communications: electrical – Selective – Having indication or alarm
Patent

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Expendable moving echo radiator

Communications – electrical: acoustic wave systems and devices – Sonar counter-measures
Patent

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Harbor approach-defense embedded system

Communications – electrical: acoustic wave systems and devices – Receiver circuitry – Responsive to intruder energy
Patent

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Selected depth mooring system

Ships – Building – Canal and ferry boats
Patent

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Profile ID: LFUS-PAI-P-568230

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