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公开(公告)号：US2833411A
公开(公告)日：1958-05-06
申请号：US38601653
申请日：1953-10-14
Applicant: STAMICARBON
Inventor： MICHIEL BOSMAN , BECKERS JOZEF M H
IPC: B03B13/00
CPC classification number: B03B13/005 , Y10T137/7313 , Y10T137/7339
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