Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7677144 | Brake drum finishing and balancing | Joseph A. Brotherton | 2010-03-16 |
| 7044273 | Brake drum stacking method and brake drum with drum stacking structure | Joseph A. Brotherton | 2006-05-16 |