Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4865344 | Wheelchair hand propulsion apparatus | Bruce David Bayes | 1989-09-12 |
| 4861039 | Method of playing a magnetic checkers game | E. Lakin Phillips | 1989-08-29 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4865344 | Wheelchair hand propulsion apparatus | Bruce David Bayes | 1989-09-12 |
| 4861039 | Method of playing a magnetic checkers game | E. Lakin Phillips | 1989-08-29 |