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United States Patent 2402603
Inventors:
Clark, Trevor H.
Publication Date:
06/25/1946
View Patent Images:
Download PDF 2402603
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Export Citation:
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Assignee:
STANDARD TELEPHONES CABLES LTD
Primary Class:
323/370
Other Classes:
332/175, 307/112, 338/89, 333/24C
International Classes:
H02M7/54
;
H02M7/42