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发明名称
摘要
申请公布号
JP2671982(B2)
申请公布日期
1997.11.05
申请号
JP19870175725
申请日期
1987.07.13
申请人
发明人
分类号
E02D3/12;(IPC1-7):E02D3/12
主分类号
E02D3/12
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代理人
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地址
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