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公开(公告)号：US2519663A
公开(公告)日：1950-08-22
申请号：US4805748
申请日：1948-09-07
Applicant: KLEIN JR EDWARD WILLIAM
Inventor： KLEIN JR EDWARD WILLIAM
CPC classification number: B01D36/001 , B01D29/15 , B01D29/52 , B01D29/66 , B01D2201/0469 , B01D2201/64
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