Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6543578 | Analog control | — | 2003-04-08 |
| 6170606 | Analog control | — | 2001-01-09 |
| 4359137 | Safeload indicator for aerial lift platform apparatus | Charles W. Walters | 1982-11-16 |
| 4331215 | Controls for aerial lift platform apparatus | John L. Grove, Charles W. Walters | 1982-05-25 |