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公开(公告)号：US2509891A
公开(公告)日：1950-05-30
申请号：US63440445
申请日：1945-12-11
Applicant: STANDARD OIL DEV CO
Inventor： STARR JR CHARLES E , RATLIFF FRANCIS T
IPC: C10L1/10
CPC classification number: C10L1/103
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