Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882459 | Pressure sensitive switch having rugged construction and accurate trip pressure settings | Stanley H. Edwards, Jr., James B. Warren | 1989-11-21 |
| 4847453 | Limit switch with actuator | Edwin R. Newell | 1989-07-11 |