Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5129237 | Ice making machine with freeze and harvest control | Donald D. Day | 1992-07-14 |
| 5042263 | Ice making machine with freeze and harvest control | Donald D. Day | 1991-08-27 |
| 4947653 | Ice making machine with freeze and harvest control | Donald D. Day | 1990-08-14 |