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发明名称
摘要
申请公布号
JPS59160974(U)
申请公布日期
1984.10.27
申请号
JP19830054975U
申请日期
1983.04.13
申请人
发明人
分类号
F16K49/00;F16K31/122;(IPC1-7):F16K49/00
主分类号
F16K49/00
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代理人
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