Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5400978 | Blade and stripper assembly for a paper shredder | — | 1995-03-28 |
| 5269473 | Support structure for a paper shredder | Knut Bliesener | 1993-12-14 |
| 5243371 | Swing arm assembly for the projector head of an overhead projector | — | 1993-09-07 |
| 5230477 | Knife shaft stripping device for document shredders | — | 1993-07-27 |
| 5167374 | Paper shredder with switch-off retardation | — | 1992-12-01 |
| 5135178 | Knife shaft assembly for document shredders | — | 1992-08-04 |
| 5020733 | Document shredder with one or more trays for stacks of paper in continuous form | — | 1991-06-04 |
| 4964579 | Document shredder with one or more trays for stacks of paper in continuous form | — | 1990-10-23 |
| 4699329 | Arrangement for rolling up and unrolling of material webs | — | 1987-10-13 |
| 4195410 | Device for measuring the length of a web | — | 1980-04-01 |