发明名称 OVERBURDEN PILOT BIT
摘要 The design consists of the features of the shape and ornamentation of an OVERBURDEN PILOT BIT as shown in solid lines in the drawings. The portions shown in stippled lines do not form part of the design.Drawing(s)/photograph(s) of the design is (are) included.The drawings show one design.Figure 1 is a top side perspective view of the present design an overburden pilot bit.Figure 2 is a bottom side perspective view of the overburden pilot bit shown in Figure 1.Figure 3 is a side plan view of the overburden pilot bit shown in Figure 1.Figure 4 is a bottom plan view of the overburden pilot bit shown in Figure 1.Figure 5 is a top plan view of the overburden pilot bit shown in Figure 1.
申请公布号 CA152555(S) 申请公布日期 2014.07.10
申请号 CA20130152555F 申请日期 2013.08.26
申请人 WESTERN DRILLING TOOLS INC. 发明人
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代理机构 代理人
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