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发明名称
CAP FOR UNDERDRAINS IN GRAVITY FILTERS
摘要
申请公布号
EP0507414(A3)
申请公布日期
1993.03.24
申请号
EP19920200933
申请日期
1992.04.01
申请人
F.B. LEOPOLD COMPANY, INC.
发明人
BROWN, MARVIN A.;WOLFE, GERALD D.;BEVERLY, RICHARD P.
分类号
B01D24/12;B01D24/22;B01D24/24;(IPC1-7):B01D24/42
主分类号
B01D24/12
代理机构
代理人
主权项
地址
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