Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4475570 | Anti-syphon freezeless water hydrant | Phillip Crawley, John L. Marshall, Steve A. Martin | 1984-10-09 |
| 4215850 | Winch | Reinhold A. Haase, Norman D. Brockelsby | 1980-08-05 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4475570 | Anti-syphon freezeless water hydrant | Phillip Crawley, John L. Marshall, Steve A. Martin | 1984-10-09 |
| 4215850 | Winch | Reinhold A. Haase, Norman D. Brockelsby | 1980-08-05 |