Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D350887 | Grinding cup | Robert Sjolander | 1994-09-27 |
| 5193312 | Non-rotating grinding apparatus | Soren Gudmundsson, Robert Sjolander | 1993-03-16 |
| 4901836 | Settable slip clutch | Soren Gudmundssom | 1990-02-20 |
| 4669930 | Tap holder | — | 1987-06-02 |