Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4404547 | Data input keyboard | Valentin P. Zybailo, Ljudmila E. Kosyan, Valentin P. Rudenko, Sergei A. Poltaev | 1983-09-13 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4404547 | Data input keyboard | Valentin P. Zybailo, Ljudmila E. Kosyan, Valentin P. Rudenko, Sergei A. Poltaev | 1983-09-13 |