Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8827773 | Manual locking means for bit holder with micro/macro adjustment | Bjorn Sjolander, Bo Thomas Sjolander | 2014-09-09 |
| 7811155 | Grinding member for buttons on rock drill bit | Bjorn Sjolander, Bo Thomas Sjolander | 2010-10-12 |
| 7402093 | Grinding apparatus for buttons on rock drill bit | Bjorn Sjolander, Bo Thomas Sjolander | 2008-07-22 |
| 7198556 | Grinding apparatus | Bjorn Sjolander, Bo Thomas Sjolander | 2007-04-03 |
| 5527206 | Holder device | Bo Thomas Sjolander | 1996-06-18 |
| D350887 | Grinding cup | Dag Stenmark | 1994-09-27 |
| 5193312 | Non-rotating grinding apparatus | Soren Gudmundsson, Dag Stenmark | 1993-03-16 |
| 5070654 | Self-centering arrangement for grinding the hardmetal pins of drill bits | Kallevi K. Manqvist | 1991-12-10 |
| D312157 | Storing and dispensing container for a connecting cable-blasting cable | — | 1990-11-13 |