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发明名称
摘要
申请公布号
JPS644959(U)
申请公布日期
1989.01.12
申请号
JP19870098817U
申请日期
1987.06.26
申请人
发明人
分类号
F15B11/08;F16K11/078;(IPC1-7):F16K11/078
主分类号
F15B11/08
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代理人
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