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发明名称
摘要
申请公布号
JP2549943(Y2)
申请公布日期
1997.10.08
申请号
JP19920031465U
申请日期
1992.05.13
申请人
发明人
分类号
F16L19/04;F16L49/00;(IPC1-7):F16L49/00
主分类号
F16L19/04
代理机构
代理人
主权项
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