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发明名称
Подъемно-опускной щитовой затвор с автоматическим регулированием расхода воды через водоспускное отверстие, сообразно уровню ее в водоприемнике
摘要
申请公布号
SU21825(A1)
申请公布日期
1931.07.31
申请号
SU19300067995
申请日期
1930.04.09
申请人
DONIS K.I.
发明人
DONIS K.I.
分类号
E02B7/28
主分类号
E02B7/28
代理机构
代理人
主权项
地址
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