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发明名称
Gate valve
摘要
申请公布号
US1769386(A)
申请公布日期
1930.07.01
申请号
US19270226621
申请日期
1927.10.17
申请人
THE PELTON WATER WHEEL COMPANY
发明人
ORTON ERNEST W.
分类号
F16K31/122
主分类号
F16K31/122
代理机构
代理人
主权项
地址
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