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发明名称
摘要
申请公布号
JPS5440518(U)
申请公布日期
1979.03.17
申请号
JP19770114133U
申请日期
1977.08.26
申请人
发明人
分类号
F16K31/126;(IPC1-7):F16K31/126
主分类号
F16K31/126
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代理人
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