Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4850746 | Rock anchor assembly for securing roadways and wall surfaces of open cuts and tunnels | Klemens Finsterwalder | 1989-07-25 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4850746 | Rock anchor assembly for securing roadways and wall surfaces of open cuts and tunnels | Klemens Finsterwalder | 1989-07-25 |