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发明名称
Apparatus for refining lubricating oils
摘要
申请公布号
US2268706(A)
申请公布日期
1942.01.06
申请号
US19390251953
申请日期
1939.01.20
申请人
HOLT CARL E
发明人
HOLT CARL E.
分类号
C10M175/00
主分类号
C10M175/00
代理机构
代理人
主权项
地址
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