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公开(公告)号：US2651857A
公开(公告)日：1953-09-15
申请号：US15658850
申请日：1950-04-18
Applicant: B B CHEM CO
Inventor： GRISWOLD STANLEY M , REYNOLDS JR HAROLD C
IPC: A43D11/00
CPC classification number: A43D11/003
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