Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5594221 | High ampere-circuit breaker secondary disconnect arrangement | William H. Calder, Martin C. Ignasiak | 1997-01-14 |
| 5525080 | Circuit breaker terminal screw assembly | William H. Calder | 1996-06-11 |