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公开(公告)号：US2792152A
公开(公告)日：1957-05-14
申请号：US58783856
申请日：1956-05-28
Applicant: STANDARD OIL CO
Inventor： CROWLEY MICHAEL S , BIRKNESS HARALD A , WYGANT JAMES F
CPC classification number: B01J8/002 , F04D29/606
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