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发明名称
Filter condition indicator
摘要
申请公布号
US2789175(A)
申请公布日期
1957.04.16
申请号
US19540415291
申请日期
1954.03.10
申请人
MAHR JACOB K
发明人
MAHR JACOB K.
分类号
B01D46/10;F24F3/16
主分类号
B01D46/10
代理机构
代理人
主权项
地址
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