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公开(公告)号：US2796146A
公开(公告)日：1957-06-18
申请号：US32025452
申请日：1952-11-13
Applicant: HERSEY
Inventor： HERSEY JR HENRY J , PERLIS DAVID B
CPC classification number: B01D46/2411 , B01D29/01 , B01D29/114 , B01D29/682 , B01D29/908 , B01D46/0046 , B01D46/0068 , B01D2201/084
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