Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4606132 | Digital electronic inclination gauge | Jeffrey C. Heidel, Harold L. Swartz | 1986-08-19 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4606132 | Digital electronic inclination gauge | Jeffrey C. Heidel, Harold L. Swartz | 1986-08-19 |