Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5825692 | Memory system and method for simultaneously reading and writing data | Robert Baumgartner | 1998-10-20 |
| 4943120 | Force transmitting housing for longwall mining machine | — | 1990-07-24 |
| 4445724 | Cutter-loader apparatus having overhung shearer drum | Ernst E. Harms | 1984-05-01 |
| 4236758 | Rack drive for a drum cutter mining machine | — | 1980-12-02 |