Wave filter
United States Patent 2694186
US Patent References:
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- - 2522861

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Inventors:
Kinzer, John P.
Marshall, Robert W.
Wilson, Ira G.
Publication Date:
11/09/1954
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Assignee:
BELL TELEPHONE LABOR INC
Primary Class:
333/212
Other Classes:
333/228, 333/209
International Classes:
H01P1/208; H01P7/06; H01P1/20; H01P7/00
US Patent References:
2619539Mode changer