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发明名称
Method of filtering
摘要
申请公布号
US2609931(A)
申请公布日期
1952.09.09
申请号
US19480021764
申请日期
1948.04.17
申请人
FRAM CORPORATION
发明人
RODMAN CLARKE A.;TEWKSBURY NORMAN L.
分类号
B01D15/00;B01D15/04;B01D37/00;C10M175/00
主分类号
B01D15/00
代理机构
代理人
主权项
地址
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