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公开(公告)号：US2971293A
公开(公告)日：1961-02-14
申请号：US72360758
申请日：1958-03-24
Applicant: WINKLER ERHARD M
Inventor： WINKLER ERHARD M
CPC classification number: C09K17/32 , C05F1/005 , Y02A40/203 , Y02P20/145 , C05G3/04
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