Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5688587 | Antifalsification paper having a thread- or band-shaped security element and a method for producing it | Theo Burchard, Christian Schmitz | 1997-11-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5688587 | Antifalsification paper having a thread- or band-shaped security element and a method for producing it | Theo Burchard, Christian Schmitz | 1997-11-18 |