Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5097727 | Method of making a knife having a scalloped cutting edge | Robert R. Fischer | 1992-03-24 |
| 5022299 | Method of making a knife having a scalloped cutting edge | Robert R. Fischer | 1991-06-11 |
| 4891885 | Method of making a knife having a scalloped cutting edge | Robert R. Fischer | 1990-01-09 |
| 4706524 | Circular knife and method of making same | Robert R. Fischer | 1987-11-17 |
| 4660453 | Circular knife and method of making same | Robert R. Fischer | 1987-04-28 |