Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6414650 | Sign system with field changeable screen size and message | Timothy J. Nicholson, John P. Nicholson, Gordon M. Melby, Paul C. Freeberg | 2002-07-02 |
| 6150996 | Changeable message sign system with reconfigurable sign screen | Timothy J. Nicholson, John P. Nicholson, Gordon M. Melby, Paul C. Freeberg | 2000-11-21 |