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发明名称
摘要
申请公布号
JPS55161975(U)
申请公布日期
1980.11.20
申请号
JP19790062367U
申请日期
1979.05.10
申请人
发明人
分类号
F16K31/62;(IPC1-7):F16K31/62
主分类号
F16K31/62
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代理人
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