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发明名称
VALVE FOR PRODUCING VARIABLE PRESSURE
摘要
申请公布号
PL111916(B1)
申请公布日期
1980.09.30
申请号
PL19760191630
申请日期
1976.08.03
申请人
发明人
分类号
F15B;F16K;F16K17/30;(IPC1-7):F16K17/30
主分类号
F15B
代理机构
代理人
主权项
地址
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