Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4848522 | Safety device to prevent accidental unwinding of a rolling shutter or rolling overhead door wound on a shaft | — | 1989-07-18 |
| 4796674 | Shed-forming apparatus for doup weave | Kurt Vilsecker | 1989-01-10 |