4. Communications: radio wave antennas
  5. Antennas
  6. Balanced doublet - centerfed

Robert V. Clark

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Acoustic bus passenger counter

Communications: electrical – Selective
Patent

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Large area motion sensor

Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
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Range limited area protection system

Communications: electrical – Condition responsive indicating system – With particular system function
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Profile ID: LFUS-PAI-P-1364858

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