Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4783822 | Multi-adjustable headband | Howard E. Chalson, Walter S. Bussey | 1988-11-08 |
| 4406989 | Automatic level control circuit | Dennis M. McCarthy | 1983-09-27 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4783822 | Multi-adjustable headband | Howard E. Chalson, Walter S. Bussey | 1988-11-08 |
| 4406989 | Automatic level control circuit | Dennis M. McCarthy | 1983-09-27 |