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发明名称
摘要
申请公布号
JPS52111423(U)
申请公布日期
1977.08.24
申请号
JP19760019790U
申请日期
1976.02.21
申请人
发明人
分类号
F16K17/16;F16K17/14;(IPC1-7):F16K17/14
主分类号
F16K17/16
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代理人
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