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1.发明授权
公开(公告)号：US1869435A
公开(公告)日：1932-08-02
申请号：US20282927
申请日：1927-07-01
Applicant: STANDARD OIL DEV CO
Inventor： NICHOLS JR HAROLD JANNEY , WISE CLARENCE R
IPC: C10K1/12
CPC classification number: C10K1/125
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