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发明名称
摘要
申请公布号
JPH04134581(U)
申请公布日期
1992.12.15
申请号
JP19910071999U
申请日期
1991.05.29
申请人
发明人
分类号
E03C1/20;(IPC1-7):E03C1/20
主分类号
E03C1/20
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