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经营范围
发明名称
Hydraulic fluid and lubricating oil
摘要
申请公布号
US2398943(A)
申请公布日期
1946.04.23
申请号
US19410411903
申请日期
1941.09.22
申请人
UNION OIL COMPANY
发明人
KOLLEN MYRON H.
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主分类号
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