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发明名称
VALVE-CHECK VALVE SHUTOFF DEVICE
摘要
申请公布号
RU1809895(C)
申请公布日期
1993.04.15
申请号
SU19914924914
申请日期
1991.01.30
申请人
KOROVIN NIKOLAJ I
发明人
KOROVIN NIKOLAJ I
分类号
F16K1/48;(IPC1-7):F16K1/48
主分类号
F16K1/48
代理机构
代理人
主权项
地址
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