Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE33872 | Magnetic-tape cassette with a latching cover plate | Karel G. M. Koken, Hubertus F. W. van de Kerkhof, John C. J. Olierook | 1992-04-07 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE33872 | Magnetic-tape cassette with a latching cover plate | Karel G. M. Koken, Hubertus F. W. van de Kerkhof, John C. J. Olierook | 1992-04-07 |