Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5325243 | System for selectively interfacing information carriers by physically accepting cassettes | Cornelis Ouwerkerk, Cornelis M. van Beijersbergen, Pieter G. Markus, Paul J. F. Van Weele | 1994-06-28 |
| 5093823 | Cassette with removable disc | Cornelius Ouwerkerk, Cornelis M. Beijersbergen Van Henegouwen, Karel G. M. Koken | 1992-03-03 |