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公开(公告)号：US1847239A
公开(公告)日：1932-03-01
申请号：US36802129
申请日：1929-06-03
Applicant: PHILLIPS PETROLEUM CO
Inventor： FREY FREDERICK E , GUYER JESSE A
IPC: C07C2/00
CPC classification number: C07C2/00
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