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发明名称
VALVE
摘要
申请公布号
SU821831(A1)
申请公布日期
1981.04.15
申请号
SU19772519289
申请日期
1977.09.02
申请人
POPOV VLADIMIR B,SU
发明人
POPOV VLADIMIR B,SU
分类号
F16K31/122;F16K31/56;(IPC1-7):F16K31/12
主分类号
F16K31/122
代理机构
代理人
主权项
地址
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