Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4518285 | Control system for longwall mining roof supports | Karl Weber, Wolfgang Beckmann | 1985-05-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4518285 | Control system for longwall mining roof supports | Karl Weber, Wolfgang Beckmann | 1985-05-21 |