Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888266 | Process for producing information supports capable of being optically read by variations in absorption | Claude Puech | 1989-12-19 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888266 | Process for producing information supports capable of being optically read by variations in absorption | Claude Puech | 1989-12-19 |