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发明名称
摘要
申请公布号
JP2003515689(A)
申请公布日期
2003.05.07
申请号
JP20010542671
申请日期
2000.12.01
申请人
发明人
分类号
E21D20/00;E21D20/02;E21D21/00;(IPC1-7):E21D20/02
主分类号
E21D20/00
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代理人
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