Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4867661 | Mold for making annular polymeric articles | Alexandr N. Natalevich, Alexei G. Bondarenko, Leonid G. Trofimov, Alexandr A. Yatsuk, Alexandr S. Kholmovsky +1 more | 1989-09-19 |