Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6063458 | Folded identification tags | John A. Robertson, Edward S. O'Neal, Ken R. Vaughn | 2000-05-16 |
| 5407154 | Hot bearing simulator | Donald C. Wetzel | 1995-04-18 |
| 5292090 | Simulator for railroad hot wheel detector | Donald C. Wetzel | 1994-03-08 |