Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4849958 | System for recording/reading information on/from a disc, comprising a disc cassette and an apparatus | Marcelles B. M. Douwes, Cornelis H. M. Van Rijsewijk, Cornelis Ouwerkerk | 1989-07-18 |
| 4841602 | Device for cutting up meat and/or bones of a slaughter animal | Marcelles B. M. Douwes | 1989-06-27 |
| 4801259 | Device for producting conical cases from strips of dough material wound on a carrier | Henrikus P. M. Clerx | 1989-01-31 |