I-beam mast
The broken lines showing a truck and drilling equipment in
Claims
I claim the ornamental design for an I-beam mast, as shown and described.
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Type: Grant
Filed: Jun 10, 2009
Date of Patent: Mar 23, 2010
Assignee: North Star Falcon Industries, LLC (Stillwater, OK)
Inventor: Scott B. Kusselson (Stillwater, OK)
Primary Examiner: Cynthia E Ramirez
Attorney: QuickPatents, Inc.
Application Number: 29/338,376