Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5358063 | Drill bit | Jan-Gunnar Hedlund | 1994-10-25 |
| 5333520 | Method of making a cemented carbide body for tools and wear parts | Udo Fischer, Jan Akerman, Stig Lagerberg | 1994-08-02 |
| 5284216 | Down-the-hole drill tool for drilling in advance of a casing tube | Anders Brungs, Jan-Gunnar Hedlund, Kjell Jansson | 1994-02-08 |