Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4854932 | Method of and apparatus for gathering and manipulating stacked zig-zag formations of paper sheets | Jurgen Peter | 1989-08-08 |
| 4842573 | Apparatus for forming stacks of panels in zig-zag formation | Jurgen Peter | 1989-06-27 |