Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4856194 | Cutting attachment for trimmers | — | 1989-08-15 |
| 4826796 | Mixed basic metal oxide catalyst for oxidative coupling of methane | Erek J. Erekson | 1989-05-02 |
| D299484 | Cutting attachment for a lawn and weed trimmer | — | 1989-01-24 |