Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5690601 | Method and apparatus for slitting and scoring corrugated paperboard sheets for folding | Arthur Burkart | 1997-11-25 |
| 5656005 | Method and apparatus for automatically forming corrugated sheets into block-shaped units of optimal size | David Hess, Marajo Reis, Michael Chao | 1997-08-12 |
| 5628868 | Apparatus and method for applying a viscous liquid to a material surface | Carl R. Marschke | 1997-05-13 |