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公开(公告)号：US2918529A
公开(公告)日：1959-12-22
申请号：US66607357
申请日：1957-06-17
Applicant: INT STANDARD ELECTRIC CORP
Inventor： SIDNEY CHITTLEBURGH WILLIAM FR , HAROLD WALKER THOMAS , ANTHONY JESSOP
CPC classification number: H04L25/245
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