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发明名称
Process for converting oil
摘要
申请公布号
US1843709(A)
申请公布日期
1932.02.02
申请号
US19210479446
申请日期
1921.06.22
申请人
UNIVERSAL OIL PRODUCTS COMPANY
发明人
DUBBS CARBON P.
分类号
主分类号
代理机构
代理人
主权项
地址
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