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经营范围
发明名称
Roof drain
摘要
申请公布号
US1991772(A)
申请公布日期
1935.02.19
申请号
US19330653502
申请日期
1933.01.25
申请人
J. A. ZURN MANUFACTURING COMPANY
发明人
RIEGER EDWARD M.;PAULIN WAYNE;ZURN MELVIN A.
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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