Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5238329 | Mine roof support system | Lawrence E. Long, Gero Herrmann | 1993-08-24 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5238329 | Mine roof support system | Lawrence E. Long, Gero Herrmann | 1993-08-24 |