B - Operations – Transporting – 23 – B
Patent
B - Operations, Transporting
23
B
77/33
B23B 51/00 (2006.01)
Patent
CA 1192063
ABSTRACT OF THE DISCLOSURE An extensible drill is provided herein. It includes separate drill members having different drill diameters, which can be assembled into a continuous drill combination of selected two or more of the drill members having a stepwise increasing diameter from the outermost drill member.
413166
Borden Ladner Gervais Llp
Linden Hugo
LandOfFree
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