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1.发明授权
公开(公告)号：US2587478A
公开(公告)日：1952-02-26
申请号：US76581247
申请日：1947-08-02
Applicant: STANDARD OIL DEV CO
Inventor： ALEXIS JERNAKOFF MICHAEL , BATT GEORGE H , SANKOWSKY NICHOLAS A
CPC classification number: A01N65/00
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