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公开(公告)号：US2700625A
公开(公告)日：1955-01-25
申请号：US22790451
申请日：1951-05-23
Applicant: B B CHEM CO
Inventor： MORRIS THOMAS C , CHANDLER EDMOND A
IPC: A43B13/38
CPC classification number: A43B13/38 , Y10S264/72
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