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公开(公告)号：US3449084A
公开(公告)日：1969-06-10
申请号：US3449084D
申请日：1966-04-20
Applicant: DRESSER IND
Inventor： SMOOT THOMAS WILLIAM , COBAUGH GEORGE D
CPC classification number: B01J8/025 , B01J3/002 , B01J8/0285 , B01J2208/00495 , C01B3/025
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