Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4340208 | Refractory piece permeable to gases | Pierre Vayssiere, Charles Roederer, Jean-Claude Grosjean, Roland Grave, F. Schleimer +3 more | 1982-07-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4340208 | Refractory piece permeable to gases | Pierre Vayssiere, Charles Roederer, Jean-Claude Grosjean, Roland Grave, F. Schleimer +3 more | 1982-07-20 |