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经营范围
发明名称
Automatic floor drain shut-off valves
摘要
申请公布号
US2965126(A)
申请公布日期
1960.12.20
申请号
US19580752773
申请日期
1958.08.04
申请人
HOLLY MANUFACTURING, INC.
发明人
HALLINAN WILLIAM W.
分类号
E03F5/042
主分类号
E03F5/042
代理机构
代理人
主权项
地址
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