4. Communications: directive radio wave systems and devices (e.g.,
  5. Directive
  6. Beacon or receiver

Ralph K. Beyer

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Method and apparatus for passive direction finding with sideband

Communications: directive radio wave systems and devices (e.g. – Directive – Beacon or receiver
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Communications: directive radio wave systems and devices (e.g. – Return signal controls external device – Missile or spacecraft guidance
Reexamination Certificate

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Profile ID: LFUS-PAI-P-954118

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