Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4566210 | Display device | Kenneth G. Copeland | 1986-01-28 |
| 4426799 | Vane operated display or indicating device | — | 1984-01-24 |
| 4243978 | Display or indicating device with magnetic stop | — | 1981-01-06 |
| 4223464 | Display or indicator element | — | 1980-09-23 |