Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4551819 | Optical recording method and apparatus utilizing polymeric birefringent materials | Josef Michl | 1985-11-05 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4551819 | Optical recording method and apparatus utilizing polymeric birefringent materials | Josef Michl | 1985-11-05 |