4. Recording, communication, or information retrieval equipment
  5. Computer, data processor equipment

William L. Kilpatrick

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Adjustable yagi antenna

Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Patent

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Antenna system for deriving cardiod patterns

Communications: radio wave antennas – Antennas – Plural antennas spaced a fractional or full wave length apart
Patent

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Direction finding receiver

Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Patent

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Directional antenna

Recording – communication – or information retrieval equipment – Computer – data processor equipment
Patent

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Profile ID: LFUS-PAI-P-756988

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