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公开(公告)号：US1746197A
公开(公告)日：1930-02-04
申请号：US58213722
申请日：1922-08-16
Applicant: STANDARD OIL DEV CO
Inventor： LEWIS WARREN K
IPC: C10G7/00
CPC classification number: C10G7/00
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公开(公告)号：US1714228A
公开(公告)日：1929-05-21
申请号：US73865624
申请日：1924-09-19
Applicant: STANDARD OIL DEV CO
Inventor： LEWIS WARREN K
IPC: C10G73/32
CPC classification number: C10G73/32
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