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经营范围
发明名称
Refined viscous hydrocarbon oil
摘要
申请公布号
US1793134(A)
申请公布日期
1931.02.17
申请号
US19280317881
申请日期
1928.11.07
申请人
STANDARD OIL COMPANY
发明人
ROGERS THOMAS H.
分类号
C11B5/00
主分类号
C11B5/00
代理机构
代理人
主权项
地址
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