Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7590226 | Telephone message system and method | Duane A. Klein, Gary Frost | 2009-09-15 |
| 4560839 | Telephone junction box | — | 1985-12-24 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7590226 | Telephone message system and method | Duane A. Klein, Gary Frost | 2009-09-15 |
| 4560839 | Telephone junction box | — | 1985-12-24 |