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经营范围
发明名称
Perfectionnements aux filtres à huile
摘要
申请公布号
FR717389(A)
申请公布日期
1932.01.07
申请号
FRD717389
申请日期
1931.05.20
申请人
DOOLEY IMPROVEMENTS INC.
发明人
分类号
B01D27/06
主分类号
B01D27/06
代理机构
代理人
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