Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D304358 | Stair climbing exercise apparatus | John W. Bull, David Smith | 1989-10-31 |
| D303414 | Exercise treadmill | Gary M. Bang, Kenneth G. Real | 1989-09-12 |
| 4838543 | Low impact exercise equipment | John W. Bull | 1989-06-13 |
| D300046 | Exercise bicycle | David Smith, Randolph F. Miller | 1989-02-28 |