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发明名称
Oil filtering apparatus
摘要
申请公布号
US2540134(A)
申请公布日期
1951.02.06
申请号
US19460709109
申请日期
1946.11.12
申请人
NELSON HELMER S
发明人
NELSON HELMER S.
分类号
B01D21/00
主分类号
B01D21/00
代理机构
代理人
主权项
地址
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