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发明名称
摘要
申请公布号
JP3405902(B2)
申请公布日期
2003.05.12
申请号
JP19970199780
申请日期
1997.07.25
申请人
发明人
分类号
E21D11/04;E21D11/08;(IPC1-7):E21D11/04
主分类号
E21D11/04
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