Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D275191 | Air dam | — | 1984-08-21 |
| D271191 | Air spoiler | Leif H. Chapman, Richard F. Ruzzin | 1983-11-01 |
RA
Ralph J. Amprim
Overall (All Time): #2,359,360 of 4,157,543Top 60%
2
Patents All Time