Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5686399 | Limescale removal compositions | Giulia Ottavia Bianchetti, Stefano Scialla | 1997-11-11 |
| 5677271 | Limescale removal compositions | Giulia Ottavia Bianchetti, Stefano Scialla | 1997-10-14 |