Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4824321 | Device for turning over a length or sheet of flexible material | A. H. van der Donk, F. van den Berg | 1989-04-25 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4824321 | Device for turning over a length or sheet of flexible material | A. H. van der Donk, F. van den Berg | 1989-04-25 |