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公开(公告)号：US2422794A
公开(公告)日：1947-06-24
申请号：US47531843
申请日：1943-02-09
Applicant: SUN OIL CO
Inventor： MCCORQUODALE JR WILMER E , MAGILL LLOYD G , HAGY JAMES D
CPC classification number: C07C309/62
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