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公开(公告)号：US2670369A
公开(公告)日：1954-02-23
申请号：US18767850
申请日：1950-09-29
Applicant: CALIFORNIA RESEARCH CORP
Inventor： PIERRE FILATOFF-ROCQ , STAYNER RICHARD D
IPC: C07F9/44
CPC classification number: C07F9/44
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