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发明名称
DEVICE FOR DRIVING DOWN CASINGS TO UNDISTURBED GROUND¹WITHOUT DISPLACING OR SPOILING SENSIBLE OVERBURDEN AND¹SENSIBLE STRUCTURES
摘要
申请公布号
IE861407(L)
申请公布日期
1986.12.03
申请号
IE19860001407
申请日期
1986.05.28
申请人
AB SANDVIK ROCK TOOLS
发明人
分类号
E02D7/00;E02D5/38;E02D7/28;E02D27/48;E21B21/10;(IPC1-7):E02D7/00
主分类号
E02D7/00
代理机构
代理人
主权项
地址
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