Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4200397 | Apparatus for distinguishing between predetermined ranges of angles at which light rays leave a surface | Erwin Sick, Klaus Hartmann | 1980-04-29 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4200397 | Apparatus for distinguishing between predetermined ranges of angles at which light rays leave a surface | Erwin Sick, Klaus Hartmann | 1980-04-29 |