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经营范围
发明名称
Soluble oil
摘要
申请公布号
US1965935(A)
申请公布日期
1934.07.10
申请号
US19320596900
申请日期
1932.03.04
申请人
UNION OIL COMPANY OF CALIFORNIA
发明人
BLOUNT ARTHUR L.;BOARDMAN DONALD W.
分类号
主分类号
代理机构
代理人
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