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公开(公告)号：US2782933A
公开(公告)日：1957-02-26
申请号：US40185954
申请日：1954-01-04
Applicant: FRAM CORP
Inventor： NICHOLAS MONSARRAT
CPC classification number: B01D46/24 , B01D29/21 , B01D35/10 , B01D39/18 , B01D46/0049 , B01D46/0078 , B01D46/521 , B01D2201/0407 , Y10S55/44
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