Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6588842 | Backrest | William E. Stumpf, Donald Chadwick, Carolyn Keller, Timothy P. Coffield, Randy J. Sayers +2 more | 2003-07-08 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6588842 | Backrest | William E. Stumpf, Donald Chadwick, Carolyn Keller, Timothy P. Coffield, Randy J. Sayers +2 more | 2003-07-08 |