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公开(公告)号：US2804208A
公开(公告)日：1957-08-27
申请号：US36787453
申请日：1953-07-14
Applicant: STAMICARBON
Inventor： HARDEFELD ANDRIES VAN , TILLO FRANCISCUS M VAN
IPC: B07B1/49
CPC classification number: B07B1/49
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