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公开(公告)号：US3043783A
公开(公告)日：1962-07-10
申请号：US1891860
申请日：1960-03-31
Applicant: UNIVERSAL OIL PROD CO
Inventor： HATCHER JULIAN P , ATHERTON GEORGE E , COX WILLIAM L
IPC: C10L1/228
CPC classification number: C10L1/2283
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