Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4692067 | Control systems | Richard Ward | 1987-09-08 |
| 4605341 | Mine roof support and attachment means therefor | — | 1986-08-12 |
| 4490076 | Underground support devices | — | 1984-12-25 |
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4692067 | Control systems | Richard Ward | 1987-09-08 |
| 4605341 | Mine roof support and attachment means therefor | — | 1986-08-12 |
| 4490076 | Underground support devices | — | 1984-12-25 |