Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4869571 | Plug pin for a light waveguide | Ulrich Grzesik | 1989-09-26 |
| 4865413 | Arrangement for splicing optical waveguides and method of manufacturing same | Bernhard Lersmacher | 1989-09-12 |