Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4854118 | Methof of, and apparatus for, producing a friction spun yarn | Emil Briner, Herbert Stalder | 1989-08-08 |
| 4848079 | Friction spinning drum | Herbert Stalder, Werner Oeggerli, Emil Briner | 1989-07-18 |
| 4848686 | Bobbin tube and package support and bearing unit therefor and filament tape-up system | Robert Demuth, Walter Hefti, Daniel Hanselmann | 1989-07-18 |