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发明名称
APPARATUS FOR THE FRACTIONAL EXTRACTION OF PETROLEUM HYDROCARBONS WITH ALCOHOL
摘要
申请公布号
CA298493(A)
申请公布日期
1930.03.18
申请号
CAD298493
申请日期
申请人
THE SOLAR REFINING COMPANY
发明人
THEODORE A. WERKENTHIN
分类号
主分类号
代理机构
代理人
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