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公开(公告)号：US2819015A
公开(公告)日：1958-01-07
申请号：US25712951
申请日：1951-11-19
Applicant: SHARPLES CORP
Inventor： VAUGHAN ROBERT T
CPC classification number: C10G19/00 , B01D11/0461 , B01F9/10 , B04B5/00 , B04B5/06
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