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发明名称
EXCAVATING AUGER DEVICE AND COLUMNAR IMPROVED SOIL BODY FORMING METHOD BY THIS DEVICE
摘要
申请公布号
JPH08338189(A)
申请公布日期
1996.12.24
申请号
JP19950171403
申请日期
1995.06.13
申请人
FUKUEI KOSAN:KK
发明人
SHIYAFU ISAO
分类号
E21B7/00;E02D3/12;(IPC1-7):E21B7/00
主分类号
E21B7/00
代理机构
代理人
主权项
地址
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