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发明名称
CONTROLLABLE VALVE DEVICE
摘要
申请公布号
SU1488654(A1)
申请公布日期
1989.06.23
申请号
SU19874220997
申请日期
1987.04.03
申请人
VOLZHSKIJ NII GIDROTEKHNIKI MELIORATSII
发明人
KOSHKIN NIKOLAJ M,SU;KOSHKINA VALENTINA V,SU
分类号
F16L55/02
主分类号
F16L55/02
代理机构
代理人
主权项
地址
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