Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7175162 | Screw driven hoist | — | 2007-02-13 |
| 5971178 | Impact driven hoist | Ralph A. Ratcliff | 1999-10-26 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7175162 | Screw driven hoist | — | 2007-02-13 |
| 5971178 | Impact driven hoist | Ralph A. Ratcliff | 1999-10-26 |