Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888813 | Electronic speed control interlock | Gary R. Grissom | 1989-12-19 |
| 4873473 | Modular motor controller | Roger A. Werckman, Jr., John W. Waymire | 1989-10-10 |
| 4853828 | Solid state device package mounting apparatus | — | 1989-08-01 |