Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5135425 | Magnetic spinner toy | Melvin R. Andrews | 1992-08-04 |
| 4728871 | Novelty electric motor | — | 1988-03-01 |
| 4200283 | Magnetic spinning top game | Melvin R. Andrews | 1980-04-29 |
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5135425 | Magnetic spinner toy | Melvin R. Andrews | 1992-08-04 |
| 4728871 | Novelty electric motor | — | 1988-03-01 |
| 4200283 | Magnetic spinning top game | Melvin R. Andrews | 1980-04-29 |