Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4634872 | Process for checking the authenticity of documents as well as apparatus therefor | Cornelis D. Janus | 1987-01-06 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4634872 | Process for checking the authenticity of documents as well as apparatus therefor | Cornelis D. Janus | 1987-01-06 |