Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4861699 | Method of making a master disk used in making optical readable information disks | Jacob Wijdenes, Johannes M. Ramaker | 1989-08-29 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4861699 | Method of making a master disk used in making optical readable information disks | Jacob Wijdenes, Johannes M. Ramaker | 1989-08-29 |