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发明名称
摘要
申请公布号
JPS5563467(U)
申请公布日期
1980.04.30
申请号
JP19780146591U
申请日期
1978.10.25
申请人
发明人
分类号
F16K21/04;F16K21/08;F16K31/54;(IPC1-7):F16K21/08
主分类号
F16K21/04
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