Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4340920 | Mine vehicle safety apparatus | Ronald P. Gill, John E. Hull | 1982-07-20 |
| 4231468 | Coal-gathering assembly for a continuous miner | — | 1980-11-04 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4340920 | Mine vehicle safety apparatus | Ronald P. Gill, John E. Hull | 1982-07-20 |
| 4231468 | Coal-gathering assembly for a continuous miner | — | 1980-11-04 |