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发明名称
摘要
申请公布号
JPH0384490(U)
申请公布日期
1991.08.27
申请号
JP19890146708U
申请日期
1989.12.20
申请人
发明人
分类号
F16L13/00;F16L13/14;(IPC1-7):F16L13/00
主分类号
F16L13/00
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