Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6600441 | Subsurface exploratory radar detector for a hand tool device | Stefan Liedtke, Harald Schmitzer, John Ewen | 2003-07-29 |
| 6587184 | Positioning aid for a hand tool device | Christoph Würsch, Roland Schaer | 2003-07-01 |