Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4282414 | Convertible switch operator | Robert J. Johnston, Stephen G. Layciak | 1981-08-04 |
| 4255633 | Push-pull switch operator | Robert J. Johnston, Stephen G. Layciak | 1981-03-10 |