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公开(公告)号：US2843640A
公开(公告)日：1958-07-15
申请号：US53789055
申请日：1955-09-30
Applicant: CALIFORNIA RESEARCH CORP
Inventor： LANGLOIS GORDON E , NOBLE EDWARD D
CPC classification number: B01J27/16 , C07C2/18 , C07C2527/173 , Y10S585/906
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