Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4697055 | Arc extinction device for gas insulation electrical switchgear | Jean-Jacques Walter, Daniel James Petit, Joseph Marzocca, Georges Bernard | 1987-09-29 |
| 4670016 | Method and unit for treatment of skins with a view to separating the wool from them, and constituent means | Gerard Esteve | 1987-06-02 |