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发明名称
摘要
申请公布号
PL96644(B4)
申请公布日期
1978.01.31
申请号
PL19760187425
申请日期
1976.02.23
申请人
发明人
分类号
F16K21/04;F16K31/06;(IPC1-7):F16K21/04
主分类号
F16K21/04
代理机构
代理人
主权项
地址
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