Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5636948 | Drill for synthetic fiber filled plastic and like materials | — | 1997-06-10 |
| 4406090 | Methods and apparatus for grinding spiral tool cutting edges having non-circumferentially relieved edges | Richard F. Schian | 1983-09-27 |