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公开(公告)号：US2879893A
公开(公告)日：1959-03-31
申请号：US68778557
申请日：1957-10-02
Applicant: PFAUDLER PERMUTIT INC
Inventor： STEBBINS ALLEN J
IPC: B01J10/00
CPC classification number: B01D24/4631 , B01D24/14
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