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发明名称
摘要
申请公布号
JPS5528919(Y2)
申请公布日期
1980.07.10
申请号
JP19770031346U
申请日期
1977.03.15
申请人
发明人
分类号
F16K17/36;F16K31/72;(IPC1-7):F16K17/36
主分类号
F16K17/36
代理机构
代理人
主权项
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