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发明名称
摘要
申请公布号
JPH01171982(U)
申请公布日期
1989.12.06
申请号
JP19880068100U
申请日期
1988.05.24
申请人
发明人
分类号
F16K31/24;F16K47/02;(IPC1-7):F16K31/24
主分类号
F16K31/24
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代理人
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