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1.发明授权
公开(公告)号：US2690445A
公开(公告)日：1954-09-28
申请号：US20069050
申请日：1950-12-13
Applicant: STANDARD OIL DEV CO
Inventor： CORCORAN ETHEL J , CASHMAN EDWARD P
IPC: C10M135/06 , C10M159/12 , C10M169/00
CPC classification number: C10M159/123 , C10M135/06 , C10M2201/08 , C10M2201/081 , C10M2201/082 , C10M2201/084 , C10M2203/10 , C10M2203/108 , C10M2219/022 , C10M2219/024 , C10M2223/12 , C10M2223/121 , C10M2225/04 , C10N2270/02
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