Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6337752 | Data carrier having an optically variable element and methods for producing it | Wittich Kaule, Gerhard Stenzel | 2002-01-08 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6337752 | Data carrier having an optically variable element and methods for producing it | Wittich Kaule, Gerhard Stenzel | 2002-01-08 |