Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4917405 | Sheet folding method and apparatus | Guenther Vollath | 1990-04-17 |
| 4826212 | Sheet folding method and apparatus | Guenter Vollath | 1989-05-02 |
| 4502711 | Sheet folding method and product | — | 1985-03-05 |