Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4633913 | Wear-resistant pipe | Guenther M. Kraus | 1987-01-06 |
| 4554721 | Method of manufacturing a wear resistant pipe | Guenther M. Kraus | 1985-11-26 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4633913 | Wear-resistant pipe | Guenther M. Kraus | 1987-01-06 |
| 4554721 | Method of manufacturing a wear resistant pipe | Guenther M. Kraus | 1985-11-26 |