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发明名称
CURVED BORING PIPE CONNECTING METHOD
摘要
申请公布号
JPH09303083(A)
申请公布日期
1997.11.25
申请号
JP19960094520
申请日期
1996.04.16
申请人
SANKYU INC;TEKKEN CONSTR CO LTD;AWAJI SANGYO KK
发明人
MIKI HAJIME;MIKI AKIO;KASUYA TARO;MARUYAMA TADAKATSU
分类号
E21D9/06;(IPC1-7):E21D9/06
主分类号
E21D9/06
代理机构
代理人
主权项
地址
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