Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5019689 | Annular furnaces with a rotary hearth for shaping one of the faces of blanks of optical lenses to a desired profile by heat sagging and application of a vacuum | Jean-Jacques Boumendil | 1991-05-28 |