Drilling tool
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The broken lines shown in the drawings are for the purpose of illustrating portions of the drilling tool and form no part of the claimed design. A top view of the second embodiment is omitted because that view is identical to the top view of the first embodiment shown in
Claims
The ornamental design for a drilling tool, as shown and described.
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Type: Grant
Filed: Feb 19, 2014
Date of Patent: May 3, 2016
Assignee: Hunting Energy Services (International) Limited (Aberdeen)
Inventor: Douglas McDonald Stuart (Aberdeen)
Primary Examiner: Patricia Palasik
Application Number: 29/482,511