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发明名称
摘要
申请公布号
JP2665394(B2)
申请公布日期
1997.10.22
申请号
JP19900286906
申请日期
1990.10.24
申请人
发明人
分类号
E02B17/02;E02B17/08;(IPC1-7):E02B17/08
主分类号
E02B17/02
代理机构
代理人
主权项
地址
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