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公开(公告)号：US2052931A
公开(公告)日：1936-09-01
申请号：US74910034
申请日：1934-10-19
Applicant: DAVISON CHEMICAL CORP
Inventor： LEDNUM JAMES M , WILLIAM MARSHALL
IPC: F24F3/14
CPC classification number: F24F3/1411
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