Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4222681 | Shield for constructing tunnels with in-situ formed concrete lining | Vladimir A. Khodosh, Valentin A. Ivanov, Anatoly S. Lugovtsov, Vladimir A. Alikhashkin, Sergei N. Vlasov +3 more | 1980-09-16 |