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公开(公告)号：US2335532A
公开(公告)日：1943-11-30
申请号：US37772941
申请日：1941-02-06
Applicant: LINTON ROAM
Inventor： LINTON ROAM
CPC classification number: B01D27/005 , B01D29/15 , B01D29/58 , B01D2201/265
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