Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4623979 | Method and calculator for determining offset and angularity of coupled shafts | John M. Zatezalo | 1986-11-18 |
| 4463438 | Shaft alignment calculator | John M. Zatezalo | 1984-07-31 |