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发明名称
Apparatus for refining used lubricating oil
摘要
申请公布号
US2202657(A)
申请公布日期
1940.05.28
申请号
US19370159287
申请日期
1937.08.16
申请人
HOLT CARL E
发明人
HOLT CARL E.
分类号
B01D1/00;C10M175/00
主分类号
B01D1/00
代理机构
代理人
主权项
地址
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