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发明名称
摘要
申请公布号
JPS5850380(U)
申请公布日期
1983.04.05
申请号
JP19810146885U
申请日期
1981.10.02
申请人
发明人
分类号
F16K31/06;F16K35/00;(IPC1-7):F16K31/06
主分类号
F16K31/06
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代理人
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