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发明名称
摘要
申请公布号
JPS5413020(U)
申请公布日期
1979.01.27
申请号
JP19770085523U
申请日期
1977.06.30
申请人
发明人
分类号
F16K11/22;F16K11/07;F16K39/04;(IPC1-7):F16K11/07
主分类号
F16K11/22
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代理人
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