Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6484818 | Horizontal directional drilling machine and method employing configurable tracking system interface | Kevin L. Alft, Gregory W. Draper | 2002-11-26 |
| 6470976 | Excavation system and method employing adjustable down-hole steering and above-ground tracking | Kevin L. Alft, Brian John Bischel, Gregg Austin | 2002-10-29 |