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发明名称
摘要
申请公布号
JPH01150270(U)
申请公布日期
1989.10.17
申请号
JP19880047241U
申请日期
1988.04.07
申请人
发明人
分类号
F16K31/06;F16L37/00;F16L39/00;(IPC1-7):F16K31/06
主分类号
F16K31/06
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代理人
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