Patent classifications
H
ELECTRICITY
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H01
ELECTRIC ELEMENTS
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H01Q
ANTENNAS, i.e. RADIO AERIALS
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3/00
Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
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H01Q3/44
varying the electric or magnetic characteristics of reflecting, refracting, or diffracting devices associated with the radiating element
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