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公开(公告)号：US3405091A
公开(公告)日：1968-10-08
申请号：US35121264
申请日：1964-03-11
Applicant: WESTINGHOUSE ELECTRIC CORP
Inventor： SPRENGLING GERHARD R , SASSANO DANIEL R , TRAPP ORLIN D , CHANG LEO S
CPC classification number: C08G61/128 , H01B3/42
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