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公开(公告)号：US2250091A
公开(公告)日：1941-07-22
申请号：US26440839
申请日：1939-03-27
Applicant: SOLVAY PROCESS CO
Inventor： CAMPBELL GEORGE B , FRANK PORTER
IPC: C07C51/56
CPC classification number: C07C51/56 , C07C57/145
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