Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D346431 | Float-controlled rotary valve for flooding a rice paddy to a predetermined depth | — | 1994-04-26 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D346431 | Float-controlled rotary valve for flooding a rice paddy to a predetermined depth | — | 1994-04-26 |