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发明名称
Oil-refining apparatus
摘要
申请公布号
US2173631(A)
申请公布日期
1939.09.19
申请号
US19380231260
申请日期
1938.09.22
申请人
NIEDENS JOHNNIE A
发明人
NIEDENS JOHNNIE A.
分类号
C10M175/00;F16N39/00
主分类号
C10M175/00
代理机构
代理人
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