Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4850173 | Process for the inhibition of spread of fire and for protection against effect of fire in burning buildings | Herman K. Beyer, Sandor Dombi, Alajos Kalman, Gyula Meszaros, Peter Miasnikov +1 more | 1989-07-25 |