Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4580657 | Integral fluted tube for sound suppression and exhaust ejection | Steven D. Schmeichel, Wayne M. Wagner, John S. Wiese, Bruce Hoppenstedt, David L. Roberts | 1986-04-08 |