Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4818574 | Process of forming a refractory mass and mixture of particles for forming such a mass | Leon-Philippe Mottet, Pierre Laroche | 1989-04-04 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4818574 | Process of forming a refractory mass and mixture of particles for forming such a mass | Leon-Philippe Mottet, Pierre Laroche | 1989-04-04 |