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公开(公告)号：US2665975A
公开(公告)日：1954-01-12
申请号：US21031051
申请日：1951-02-10
Applicant: STANDARD OIL DEV CO
Inventor： THOMAS NG
CPC classification number: B01F3/0873 , B01D11/0473 , B01D21/00 , B01D21/0042 , B01D21/02 , B01D21/2405 , B01D21/2488
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