Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4807544 | Apparatus and method for subsurface injection of agrochemicals | James C. Lewis | 1989-02-28 |
| 4805088 | Method and apparatus for microprocessor controlled sprayer | Roger T. Paulk | 1989-02-14 |