Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4945798 | Punch knife | — | 1990-08-07 |
| 4913694 | Method for manufacturing a picture and/or text changing slide | Reindert Aafjes | 1990-04-03 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4945798 | Punch knife | — | 1990-08-07 |
| 4913694 | Method for manufacturing a picture and/or text changing slide | Reindert Aafjes | 1990-04-03 |