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发明名称
摘要
申请公布号
JPH0319197(U)
申请公布日期
1991.02.25
申请号
JP19890078766U
申请日期
1989.07.05
申请人
发明人
分类号
F16L43/02;F16L43/00;(IPC1-7):F16L43/02
主分类号
F16L43/02
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代理人
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