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发明名称
摘要
申请公布号
JPS5670256(U)
申请公布日期
1981.06.10
申请号
JP19790151562U
申请日期
1979.11.02
申请人
发明人
分类号
F16K3/12;F16K3/316;(IPC1-7):F16K3/12
主分类号
F16K3/12
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