Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE48026 | Hydraulic switch machine for railroads | Donald Coy Beamon, Rick Presley | 2020-06-02 |
| 9156479 | Hydraulic switch machine for railroads | Donald Coy Beamon, Rick Presley | 2015-10-13 |
| 7946538 | External point spring locking device | Donald Coy Beaman, Rick Presley | 2011-05-24 |