Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4315701 | Shuttering for erecting a concrete tunnel lining | Valentin A. Ivanov, Igor S. Ostrovsky, Mikhall Y. Shenkman, Jury A. Koshelev, Sergei N. Vlasov +2 more | 1982-02-16 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4315701 | Shuttering for erecting a concrete tunnel lining | Valentin A. Ivanov, Igor S. Ostrovsky, Mikhall Y. Shenkman, Jury A. Koshelev, Sergei N. Vlasov +2 more | 1982-02-16 |