Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5020924 | Bearing unit, especially for use in a bobbin tube and package support | Robert Demuth, Urs Keller, Daniel Hanselmann | 1991-06-04 |
| 4848686 | Bobbin tube and package support and bearing unit therefor and filament tape-up system | Robert Demuth, Urs Keller, Daniel Hanselmann | 1989-07-18 |
| 4781333 | Arrangement for holding yarn packages | Urs Keller, Robert Ammann | 1988-11-01 |
| 4718615 | Arrangement for holding yarn packages | Urs Keller, Robert Ammann | 1988-01-12 |
| 4695000 | Device for winding-up a thread | Walter Fretz | 1987-09-22 |
| 4641397 | Drafting mechanism for spinning machines | Giancarlo Mondini, Siegfried Kaufmann | 1987-02-10 |
| 4399589 | Traversing apparatus for a cutting machine for a synthetic filament tow | — | 1983-08-23 |