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发明名称
Automatic backwash filter control
摘要
申请公布号
US2184618(A)
申请公布日期
1939.12.26
申请号
US19370174584
申请日期
1937.11.15
申请人
LAWLOR JOSEPH P
发明人
LAWLOR JOSEPH P.
分类号
B01D35/00;B01D37/04
主分类号
B01D35/00
代理机构
代理人
主权项
地址
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