4. Communications, electrical: acoustic wave systems and devices
  5. Echo systems
  6. Distance or direction finding

John W. Bloomfield

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Mobile detection system

Communications: electrical – Condition responsive indicating system – With particular system function
Patent

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Platform mounted ultrasonic sweep detection system

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding
Patent

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Retrofitting gas mask voice amplifier unit with easily actuated

Surgery – Respiratory method or device – Means for transmitting – or facilitating – voice communication...
Patent

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Retrofitting gas mask voice amplifier unit with easily actuated

Surgery – Respiratory method or device – Means for transmitting – or facilitating – voice communication...
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

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Profile ID: LFUS-PAI-P-1027194

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