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经营范围
发明名称
Sluice gate
摘要
申请公布号
US2984074(A)
申请公布日期
1961.05.16
申请号
US19590802072
申请日期
1959.03.26
申请人
THE CHAPMAN VALVE MANUFACTURING COMPANY
发明人
CLAIR DONALD E. LE;REINERT ROBERT H.
分类号
E02B7/20
主分类号
E02B7/20
代理机构
代理人
主权项
地址
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