Issued Patents All Time
Showing 51–54 of 54 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4499574 | Record carrier with an optically readable information structure | — | 1985-02-12 |
| 4455632 | Apparatus for optically reading a record carrier with two types of information areas | — | 1984-06-19 |
| 4446548 | Apparatus for the point-by-point scanning of an object | Gijsbertus Bouwhuis | 1984-05-01 |
| 4415238 | Single lens having one spherical and one aspherical refractive surface | Jan Haisma, Gijsbert Prast | 1983-11-15 |