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发明名称
摘要
申请公布号
JPH02102086(U)
申请公布日期
1990.08.14
申请号
JP19890010191U
申请日期
1989.01.31
申请人
发明人
分类号
F16L3/137;F16L3/12;(IPC1-7):F16L3/12
主分类号
F16L3/137
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代理人
主权项
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