Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6829435 | Exposure system for obtaining a sensitometric control patch with exposure gradient | Thierry Prigent | 2004-12-07 |
| 6816678 | Method for obtaining a sensitometric control patch with exposure gradient and photographic element comprising such a control patch | Thierry Prigent | 2004-11-09 |