Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4687889 | Electrical appliance interlock switch with improved isolation means | — | 1987-08-18 |
| 4547634 | Electrical appliance interlock switch with improved buss | — | 1985-10-15 |
| 4528430 | Electrical appliance interlock switch with force efficient actuator | Raymond F. Lewandowski | 1985-07-09 |