Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5470112 | Adjustable coupling ring | — | 1995-11-28 |
| 5337591 | Machine and method of making duct coupling | William H. Fordee | 1994-08-16 |
| 5213374 | Coupling ring and method of making same | — | 1993-05-25 |
| 4667449 | Access door | Kirby C. Fortenberry | 1987-05-26 |