Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4829715 | Machines for grinding and bevelling ophthalmic glasses | Jean-Pierre M. F. Langlois | 1989-05-16 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4829715 | Machines for grinding and bevelling ophthalmic glasses | Jean-Pierre M. F. Langlois | 1989-05-16 |