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发明名称
SMALL-BORE PIPE BURYING DEVICE
摘要
申请公布号
JPH116392(A)
申请公布日期
1999.01.12
申请号
JP19970159923
申请日期
1997.06.17
申请人
SANWA KIZAI CO LTD
发明人
HAMANO MAMORU;AKIBA TOSHIYASU;HAYASHI SATOICHI
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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