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公开(公告)号：US2772783A
公开(公告)日：1956-12-04
申请号：US44227454
申请日：1954-07-09
Applicant: EXXON RESEARCH ENGINEERING CO
Inventor： LUDI WILLIAM C , LOESER CHRISTOPHER E
IPC: B01D17/02
CPC classification number: B01D17/0214 , Y10T137/2774 , Y10T137/8626
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