Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D304749 | Golf course marker | Eloise A. K. Johnson, James W. Johnson | 1989-11-21 |
| 4854074 | Injection capsule for treating trees | William R. Dinsmore | 1989-08-08 |
| 4848028 | Injection tool for treating trees | William R. Dinsmore, Christopher I. Hunt | 1989-07-18 |