Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4331998 | Circuit interrupter with digital trip unit and style designator circuit | Joseph J. Matsko, Joseph C. Engel, Bernard Mercier | 1982-05-25 |
| 4181906 | Circuit interrupter with interlocked removable trip unit | Joseph J. Matsko, Paul Skalka | 1980-01-01 |