Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5336150 | Lever resistance selection mechanism for strength training | Reno A. Mueller | 1994-08-09 |
| 5147263 | Pneumatic weight lift assist apparatus | — | 1992-09-15 |
| 4848738 | Weight stack with vacuum-actuated pneumatic motor for lift assist | — | 1989-07-18 |