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经营范围
发明名称
Refining mineral oils
摘要
申请公布号
US2339875(A)
申请公布日期
1944.01.25
申请号
US19400331698
申请日期
1940.04.26
申请人
STANDARD OIL DEVELOPMENT COMPANY
发明人
PFENNIG REUBEN F.;DAVIS CLAUDE R.
分类号
C10G19/067
主分类号
C10G19/067
代理机构
代理人
主权项
地址
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