Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6508243 | Apparatus and method for practicing hitting a baseball | — | 2003-01-21 |
| 6050907 | Apparatus and method for practicing hitting a baseball | — | 2000-04-18 |
| 4323238 | Action toy requiring space perception and eye/hand coordination | Hans E. I. Jernstrom, Ronald Liedtke | 1982-04-06 |