Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4817746 | Suspension mechanism for a track-type vehicle | Robert J. Purcell, Robert R. Farris | 1989-04-04 |
GS
Gerald P. Simmons
Overall (1989): #111,222 of 140,708Top 80%
1
Patents 1989