Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4881694 | Yarn traversing apparatus for a winding machine | Klaus Bartkowiak, Joachim Graf, Friedrich Urbahn | 1989-11-21 |
| 4866287 | Optical surface waviness measuring apparatus | — | 1989-09-12 |
| 4866288 | Apparatus for optically scanning a web of material | — | 1989-09-12 |