Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6220990 | Jumping jack exercise machine | — | 2001-04-24 |
| 5527248 | Variable controlled traction exercise apparatus | — | 1996-06-18 |
| 4583731 | Spinal exercising apparatus | Barry A. Spencer | 1986-04-22 |