Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7526365 | Continuous-flow irrigation timer | David K. Frerich | 2009-04-28 |
| 5047721 | Faulty lamp tester | — | 1991-09-10 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7526365 | Continuous-flow irrigation timer | David K. Frerich | 2009-04-28 |
| 5047721 | Faulty lamp tester | — | 1991-09-10 |