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公开(公告)号：US2456496A
公开(公告)日：1948-12-14
申请号：US43906642
申请日：1942-04-15
Applicant: WESTINGHOUSE ELECTRIC CORP
Inventor： FORD JAMES G , WENZEL ROBERT N
CPC classification number: G04B31/08 , C08G77/04 , C08G77/06 , C08L83/04 , C10M3/00 , C10M2229/041 , C10N2220/02
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