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发明名称
摘要
申请公布号
JPH04138441(U)
申请公布日期
1992.12.25
申请号
JP19910047696U
申请日期
1991.06.24
申请人
发明人
分类号
E02D29/12;E04G21/32;(IPC1-7):E02D29/12
主分类号
E02D29/12
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代理人
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