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发明名称
Steam engine lubricants
摘要
申请公布号
US2614991(A)
申请公布日期
1952.10.21
申请号
US19500152979
申请日期
1950.03.30
申请人
STANDARD OIL DEVELOPMENT COMPANY
发明人
WASSON JONES I.
分类号
主分类号
代理机构
代理人
主权项
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