Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4875750 | Optoelectronic coupling element and method for its manufacture | Werner Spaeth, Guenther Waitl, Werner Kuhlmann, Hans-Ludwig Althaus, Waltraud Klos +1 more | 1989-10-24 |