Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4381895 | Method and apparatus for automatic flow-through digital refractometer | Leonard A. Hughes, Benjamin C. Willman | 1983-05-03 |
| 4261562 | Electromagnetically regulated exerciser | — | 1981-04-14 |
| 4184678 | Programmable acceleration exerciser | James E. Counsilman | 1980-01-22 |