Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4969251 | Method of making brake shoe stock (II) | Gilbert B. Burkhart, III, David E. Rosenberg | 1990-11-13 |
| 4821400 | Method of making brake shoe stock | Gilbert B. Burkhart, III, David E. Rosenberg | 1989-04-18 |