Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6729131 | Stirling engine | — | 2004-05-04 |
| 4479157 | Mounting for a head drum of a helical scan recorder | Petrus J. J. Aarts, Harald Fleck | 1984-10-23 |
| 4395745 | Head-drum mounting for a helical scan tape recorder | Petrus J. J. Aarts, Harald Fleck, Ernst M. Schmidt | 1983-07-26 |