Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4365323 | Optic read unit for scanning a record carrier having a radiation-reflecting information structure | Jacobus P. J. Heemskerk, Carel Arthur Jan Simons | 1982-12-21 |
| 4357696 | Optical scanning apparatus with focussing system | Martinus P. M. Bierhoff | 1982-11-02 |
| 4354103 | Optical focusing device with two controls | Martinus P. M. Bierhoff, Jacobus P. J. Heemskerk | 1982-10-12 |