Issued Patents All Time
Showing 26–36 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4681500 | Delivery unit for bookbinding machines | Gerhard Grannemann, Ulrich Erdboris | 1987-07-21 |
| 4524857 | Book block feed device | Winfried Hedrich | 1985-06-25 |
| 4516960 | Variable speed chain drive | — | 1985-05-14 |
| 4507036 | Inner book clamp | — | 1985-03-26 |
| 4467912 | Book block gripper for a transport system | — | 1984-08-28 |
| 4383683 | Apparatus for separating the bottom sheet of a stack or sheets | — | 1983-05-17 |
| 4300427 | Three-knife trimmer | — | 1981-11-17 |
| 4285292 | Method of thread stitching layers to form a sewn book | Winfried Hedrich | 1981-08-25 |
| 4275873 | Process and equipment for the opening of folded proof sheets | — | 1981-06-30 |
| 4252071 | Apparatus for thread stitching layers to form a sewn book | Winfried Hedrich | 1981-02-24 |
| 4231466 | Book block transport system | — | 1980-11-04 |