Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D414188 | Telephone control module case assembly | Gordon H. Matthews, Larry A. Stell, David G. Turnbull | 1999-09-21 |
| D413894 | Call management system case assembly | Gordon H. Matthews, Larry A. Stell, David G. Turnbull | 1999-09-14 |