Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5229557 | Rigidified muffler assembly | James R. Allman, Thomas J. Rohm | 1993-07-20 |
| 5147987 | Muffler assembly | Larry E. Richardson, David W. Strickland, Frank L. Zagar | 1992-09-15 |
| 4941545 | Muffler assembly | James R. Allman, Stacy L. Smith | 1990-07-17 |