Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5662135 | Irrigation control bypass apparatus and method | Arthur L. Oppmann, John F. Oppmann | 1997-09-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5662135 | Irrigation control bypass apparatus and method | Arthur L. Oppmann, John F. Oppmann | 1997-09-02 |