Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4523251 | Electronic apparatus comprising an input stage with a binary output connected to a relay control circuit | Jurgen Erdmann, Hartmut Knappe | 1985-06-11 |
| 4339660 | Reflection light barrier apparatus for recognizing both strongly and weakly reflecting objects | Jurgen Erdmann, Gunter Fetzer | 1982-07-13 |