4. Communications: electrical
  5. Systems
  6. Call station

David N. Gershberg

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Doppler perimeter intrusion alarm system using a leaky waveguide

Communications: electrical – Systems – Call station
Patent

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Radiation enhancement device

Communications: radio wave antennas – Antennas – Slot type
Patent

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Radio frequency switch for coupling an RF source to a load

Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent

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Ranging quadrature doppler microwave intrusion alarm system

Communications: electrical – Condition responsive indicating system – Specific condition
Patent

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Profile ID: LFUS-PAI-P-754776

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