Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4867544 | Optical glass elements having a graded refraction index for ir light and method for their production | Tsadok Tsalach | 1989-09-19 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4867544 | Optical glass elements having a graded refraction index for ir light and method for their production | Tsadok Tsalach | 1989-09-19 |