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经营范围
发明名称
Oil-purifying apparatus for hydrocarbon engines
摘要
申请公布号
US1951683(A)
申请公布日期
1934.03.20
申请号
US19290396785
申请日期
1929.10.02
申请人
WATSON MARY C
发明人
WATSON MARY C.
分类号
B01D35/18;F01M1/10;F01M5/00;F01M11/03;F16N39/00
主分类号
B01D35/18
代理机构
代理人
主权项
地址
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