Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6155554 | Multiple action shovel feed mechanism for stacked sheets | Herbert W. Helm, Hans Theo Heister | 2000-12-05 |
| 5094658 | Vacuum side-folder section for envelope blank folding apparatus | Elliot S. Smithe, Dennis G. Prough | 1992-03-10 |