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发明名称
摘要
申请公布号
JPH0746857(Y2)
申请公布日期
1995.10.25
申请号
JP19890148452U
申请日期
1989.12.22
申请人
发明人
分类号
F16L11/16;F16L11/11;(IPC1-7):F16L11/16
主分类号
F16L11/16
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代理人
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