Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4814013 | Chemically resistant concrete based on water glass | Evgeny A. Guzeev, Ivan E. Putlyaev, Anatoly N. Pimenov, Vladimir Borisenko, Valery S. Radjukhin +5 more | 1989-03-21 |