Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4210887 | Circuit interrupter with interlocked interchangeable trip unit | Joseph J. Matsko, Robert H. Hill, Alfred E. Maier | 1980-07-01 |
| 4181906 | Circuit interrupter with interlocked removable trip unit | Joseph J. Matsko, Emroy W. Lange | 1980-01-01 |
| 4181922 | Circuit interrupter with improved adjustable trip unit | Joseph J. Matsko, Alan B. Shimp | 1980-01-01 |