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Patent classifications
H
ELECTRICITY
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H01
ELECTRIC ELEMENTS
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H01P
WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
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1/00
Auxiliary devices
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H01P1/18
Phase-shifters
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H01P1/19
using a ferromagnetic device
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H01P1/195
having a toroidal shape
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