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发明名称
Oil control device
摘要
申请公布号
US2183815(A)
申请公布日期
1939.12.19
申请号
US19380189111
申请日期
1938.02.07
申请人
JOHNSON ROY W
发明人
JOHNSON ROY W.
分类号
F23D5/14
主分类号
F23D5/14
代理机构
代理人
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