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公开(公告)号：US2885368A
公开(公告)日：1959-05-05
申请号：US54418555
申请日：1955-11-01
Applicant: TEXAS CO
Inventor： HESS HOWARD V , RAY WATSON A
IPC: B01J20/18
CPC classification number: B01J20/183 , Y10S502/503 , Y10S502/504
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