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发明名称
Щитовой затвор для водопропускных отверстий гидротехнических сооружений
摘要
申请公布号
SU30622(A1)
申请公布日期
1933.05.31
申请号
SU19290053968
申请日期
1929.09.02
申请人
ZHURIN V.L.
发明人
ZHURIN V.L.
分类号
E02B7/26
主分类号
E02B7/26
代理机构
代理人
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地址
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