Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5448913 | Adjustable measuring device | Rodney W. Robbins, E. Stanley Robbins, Frans M. Wetterings, John E. Watkins | 1995-09-12 |
| 5325717 | Adjustable measuring device | Rodney W. Robbins, E. Stanley Robbins, Frans M. Weterrings, John E. Watkins | 1994-07-05 |