Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4823632 | Gear box assembly | Michael R. Siebern | 1989-04-25 |
| 4802372 | Selectable ratio transmission and visual identification of the ratio | Michael R. Siebern | 1989-02-07 |
| D299663 | Ride-on toy vehicle | — | 1989-01-31 |
| D299666 | Ride-on toy vehicle | — | 1989-01-31 |