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发明名称
Откидной вращающийся щитовой затвор для гидротехнических сооружений
摘要
申请公布号
SU18291(A1)
申请公布日期
1930.09.30
申请号
SU19290042075
申请日期
1929.03.04
申请人
BERNIKER A.O.
发明人
BERNIKER A.O.
分类号
E02B7/40
主分类号
E02B7/40
代理机构
代理人
主权项
地址
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