Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6921232 | Mine roof-support truss | Lothar Domanski, Franz-Josef Wunderlich | 2005-07-26 |
| 6880308 | Lattice girder supporting frame having straight brace parts | Rudolf Seiz | 2005-04-19 |