|
US3683281A
|
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Crab angle sensing system
|
|
US3613099A
|
|
Vor antenna system
|
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ES317985A1
|
|
A localizer transmitter antenna device. (Machine-translation by Google Translate, not legally binding)
|
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GB1074299A
|
|
Localizer antenna array
|
|
US3283326A
|
|
Antenna array and method for instrument landing systems
|
|
US3177452A
|
|
Microwave digital phase-shifter
|
|
US3222620A
|
|
Multimode radio frequency structure exhibiting hybrid operation
|
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US3194921A
|
|
Radio frequency mercury switch
|
|
US3141144A
|
|
Printed circuit delay line
|
|
GB964010A
|
|
A directional radiant energy transducer system
|
|
US3118118A
|
|
Variable waveguide
|
|
US2972145A
|
|
Small directional antenna system
|
|
US3008101A
|
|
Variable transmission line
|
|
CA892230A
|
|
Vor antenna system
|
