Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6532923 | Adjustable cam sprocket | Michael G. Zerbe | 2003-03-18 |
| 6213684 | Telescoping weir | Jack Fowler, Ronald G. Vann | 2001-04-10 |
| 4487013 | T-rod chain | Gail G. Worsley | 1984-12-11 |