Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5839909 | Shutter device for closing off the compartments of a power socket | Ennio Calderara | 1998-11-24 |
| 5020997 | Safety device for shielding off the receptacles of an electric current tap | Ennio Calderara | 1991-06-04 |