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发明名称
Precoating filters
摘要
申请公布号
US2423780(A)
申请公布日期
1947.07.08
申请号
US19440561947
申请日期
1944.11.04
申请人
STANDARD OIL DEVELOPMENT COMPANY
发明人
KOLLENBERG CONRAD H.;PEET NICK P.
分类号
B01D33/00;B01D33/06;B01D37/00;B01D37/02
主分类号
B01D33/00
代理机构
代理人
主权项
地址
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