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经营范围
发明名称
Lubricating compositions
摘要
申请公布号
US2781319(A)
申请公布日期
1957.02.12
申请号
US19540417964
申请日期
1954.03.22
申请人
SHELL DEVELOPMENT COMPANY
发明人
BARNUM EMMETT R.;LORENSEN LYMAN E.
分类号
C10L1/236;C10M149/06;C10M151/02
主分类号
C10L1/236
代理机构
代理人
主权项
地址
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