Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4431491 | Process and apparatus for accurately controlling the rate of introduction and the content of alumina in an igneous electrolysis tank in the production of aluminium | Jean-Louis Gerphagnon, Gerard J. P. B. Laboure, Maurice Keinborg, Pierre Homsi, Bernard Langon | 1984-02-14 |