Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5354087 | Adjustable trailer hitch | — | 1994-10-11 |
| 5211374 | Post puller | Douglas W. Landua, James A. McAdams | 1993-05-18 |
| 5058454 | Polished rod spacer system | — | 1991-10-22 |
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5354087 | Adjustable trailer hitch | — | 1994-10-11 |
| 5211374 | Post puller | Douglas W. Landua, James A. McAdams | 1993-05-18 |
| 5058454 | Polished rod spacer system | — | 1991-10-22 |