Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5161859 | Excavating tool cutting insert | Kenneth Larsson | 1992-11-10 |
| 4938538 | Excavating tool cutting insert | Kenneth Larsson | 1990-07-03 |
| 4784517 | Method and device for working of road surfaces | Sven A. Bergqvist, Jan-Gunnar Hedlund | 1988-11-15 |
| 4621870 | Support for a cutting tool for cutting hard material | — | 1986-11-11 |
| 4284151 | Lubricating device | — | 1981-08-18 |
| 4272134 | Rotary drill bit | — | 1981-06-09 |
| 4184554 | Check valve for rock drill | — | 1980-01-22 |
| 4183417 | Roller bit seal excluded from cuttings by air discharge | — | 1980-01-15 |