Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4772205 | Tactile braille or graphic display | Lubomir Chlumsky, Leopold Hellinger | 1988-09-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4772205 | Tactile braille or graphic display | Lubomir Chlumsky, Leopold Hellinger | 1988-09-20 |