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经营范围
发明名称
Beneficiated mineral oil
摘要
申请公布号
US2308690(A)
申请公布日期
1943.01.19
申请号
US19400366915
申请日期
1940.11.23
申请人
THE STANDARD OIL COMPANY
发明人
HUGHES EVERETT C.
分类号
C10G29/20
主分类号
C10G29/20
代理机构
代理人
主权项
地址
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