Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D386237 | Double helix ladder | Kert E. Artwick, Gary Max, Wesley D. Sutton, Thomas Robert Norquist | 1997-11-11 |
| 5674418 | Method for assembling a metal design panel on a metal support structure | — | 1997-10-07 |