Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4827124 | Electro optical transducer utilizing aligned light conductors | Alfred Babsch, Dieter Beth, Johann Stempfle | 1989-05-02 |
| 4673810 | Increment sensing with three beam mark detection | Alfred Babsch, Dieter Beth, Johann Stempfle | 1987-06-16 |