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公开(公告)号：US2838544A
公开(公告)日：1958-06-10
申请号：US71600358
申请日：1958-02-19
Applicant: UPJOHN CO
Inventor： BABCOCK JOHN C , ALLAN CAMPBELL J , HOGG JOHN A , SCBEK OLDRICH K
CPC classification number: C07J9/00 , C07J5/00 , C07J75/00 , Y10S435/886
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