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公开(公告)号：US2921686A
公开(公告)日：1960-01-19
申请号：US62568456
申请日：1956-12-03
Applicant: ALPHA TANK COMPANY INC
Inventor： MILTON FORMAN , URDANOFF HOWARD D
CPC classification number: B01D35/16 , B01D29/114 , B01D29/52 , B01D29/606 , B01D29/902 , B01D29/96 , B01D2201/0453 , B01D2201/287
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