Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4676501 | Exercise machine | Daniel A. Hoagland | 1987-06-30 |
| 4392263 | Portable rescue tool | — | 1983-07-12 |
| 4294317 | Drillhead unit | — | 1981-10-13 |
| 4235168 | Vehicle with convertible wheels | — | 1980-11-25 |