Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6633163 | Apparatus and method for detecting an underground cable while operating a piece of machinery | — | 2003-10-14 |
| 6606032 | Controlling a sonde carried by a boring tool | — | 2003-08-12 |
| 6552548 | Detecting underground objects | Andrew B. Lewis | 2003-04-22 |