Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5956915 | Tubular drill mast | Carl D. Gilmore, Kenneth Hammel, Frank R. Szpek, Jr. | 1999-09-28 |
| 5145075 | Boom point construction | Kenneth V. Johnson, Dale A. Beier | 1992-09-08 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5956915 | Tubular drill mast | Carl D. Gilmore, Kenneth Hammel, Frank R. Szpek, Jr. | 1999-09-28 |
| 5145075 | Boom point construction | Kenneth V. Johnson, Dale A. Beier | 1992-09-08 |