Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871193 | Process for irreversible recording, recording carrier, as well as use of the process or of the recording carrier | — | 1989-10-03 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871193 | Process for irreversible recording, recording carrier, as well as use of the process or of the recording carrier | — | 1989-10-03 |