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公开(公告)号：US2139087A
公开(公告)日：1938-12-06
申请号：US13451537
申请日：1937-04-02
Applicant: TIDE WATER ASSOCIATED OIL COMP
Inventor： ARTHUR WALTHER
CPC classification number: C10M1/08 , C10M2215/16 , C10N2240/02
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