Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5454033 | Apparatus and method for controlling access to a telephone | Harry B. Hahn, Lawrence Ball, Travis Marlatte | 1995-09-26 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5454033 | Apparatus and method for controlling access to a telephone | Harry B. Hahn, Lawrence Ball, Travis Marlatte | 1995-09-26 |