Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5146282 | Process and device for measuring the optical quality of a glazing | Paul-Henri Guering, Patrick Gayout | 1992-09-08 |
| 4619681 | Method and apparatus for measurement of stress in float glass | Roger Tetaz | 1986-10-28 |