Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4420277 | Mine roof driller-bolter apparatus and method | George A. Hibbard, Ward D. Morrison | 1983-12-13 |
| 4260029 | Midpoint centralizer | Ward D. Morrison | 1981-04-07 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4420277 | Mine roof driller-bolter apparatus and method | George A. Hibbard, Ward D. Morrison | 1983-12-13 |
| 4260029 | Midpoint centralizer | Ward D. Morrison | 1981-04-07 |