Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4674681 | Irrigation system and apparatus | Charles H. Meis | 1987-06-23 |
| 4384676 | Traveling weir | William P. Zimmerer | 1983-05-24 |
| 4330085 | Laterally mobile irrigation system | Glen L. Andersen, Arthur L. Zimmerer, by First National Bank and Trust Company, executor, William P. Zimmerer | 1982-05-18 |