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公开(公告)号：US2817411A
公开(公告)日：1957-12-24
申请号：US48331155
申请日：1955-01-21
Applicant: WULFF PROCESS COMPANY
Inventor： COBERLY CLARENCE J
IPC: B01D47/06
CPC classification number: B01D47/06 , Y10S261/54
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