Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9611696 | Directional drill hammer pullback device | Jon Scharrer | 2017-04-04 |
| 9566653 | Pipe slitter | Mark D. Randa, Walter George Thompson | 2017-02-14 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9611696 | Directional drill hammer pullback device | Jon Scharrer | 2017-04-04 |
| 9566653 | Pipe slitter | Mark D. Randa, Walter George Thompson | 2017-02-14 |