Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4693694 | Toy with moving screen | — | 1987-09-15 |
| 4619625 | Construction toy | Sidney Bass | 1986-10-28 |
| 4579538 | Construction toy | Sidney Bass | 1986-04-01 |
| 4573928 | Teaching toy | — | 1986-03-04 |
| 4402158 | Toy employing governor to control rate of movement of movable member | Saburo Watanabe | 1983-09-06 |