Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4874246 | Arrangement for optically measuring a distance between a surface and a reference plane | — | 1989-10-17 |
AB
Arie Jeffrey Den Boef
Overall (1989): #131,137 of 140,708Top 95%
1
Patents 1989