发明名称 Drilling Assembly
摘要 <p>A drilling assembly comprising a support frame adapted for attachment to a vehicle and two or more drilling members pivotally connected to the support frame such that the two or more drilling members are maintained in a substantially vertical orientation when the drilling assembly is in use. DRAWINGS 15 15a 11 15b 25 15 23 22 25 16b 2 8 ------------- ---------- 16b 116 16a</p>
申请公布号 AU2014204512(A1) 申请公布日期 2015.02.05
申请号 AU20140204512 申请日期 2014.07.18
申请人 IMPACT CONTRACTING PTY LTD 发明人 WILLIAMS, TERENCE VINCENT
分类号 E21B7/02;E21B47/00 主分类号 E21B7/02
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