Issued Patents 2004
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6824491 | Power transmission device with automatic speed switching mechanism | — | 2004-11-30 |
| 6758783 | Automatic speed shifting device | — | 2004-07-06 |
| 6715562 | Output shaft locking device | — | 2004-04-06 |
| 6682284 | Nut having locking mechanism and low operating torque requirement | — | 2004-01-27 |