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经营范围
发明名称
Surface drain
摘要
申请公布号
US2689017(A)
申请公布日期
1954.09.14
申请号
US19510229605
申请日期
1951.06.02
申请人
J. A. ZURN MFG. CO.
发明人
SCHMID JOHN H.
分类号
E04D13/04
主分类号
E04D13/04
代理机构
代理人
主权项
地址
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