Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5605571 | Setting- and hardening-accelerator containing no chloride and nitrite and a method to accelerate the setting and hardening of hydraulic binders and mixtures thereof | Urs Maeder, Franz Wombacher, Beat Marazzani | 1997-02-25 |