Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5104262 | Tunnel boring machine | Jan Forsberg, Nils M. Astrand | 1992-04-14 |
| 5058690 | Rock working tool | Ove V. E. Nilsson | 1991-10-22 |
| 5046783 | Tunnel boring machine | Kaj Emanuelsson | 1991-09-10 |
| 4853554 | Starting device | Sven H. Johansson | 1989-08-01 |
| 4766963 | Hand-held hammer tool | Karl G. B. Ragnmark | 1988-08-30 |
| 4758132 | Rotary machine with motor embedded in the rotor | — | 1988-07-19 |
| 4724806 | Lubricant circulation system | — | 1988-02-16 |
| 4665704 | Combustion engine system | — | 1987-05-19 |
| 4639645 | Drive system for A.C. motors | — | 1987-01-27 |
| 4601351 | Electrically driven hammer machine | Sven H. Johansson, Erik A. Ljung | 1986-07-22 |
| 4550282 | Method and device for controlling a brushless alternating current motor | Erik A. Ljung, Erik M. Obel | 1985-10-29 |
| 4546282 | Magnetizable core for accommodating electrical conductors in an electrical machine, and a method of manufacturing such a core | — | 1985-10-08 |
| 4511312 | Method of driving the impeller of a liquid pump by means of a brushless a.c. motor; and a liquid pump for carrying out the method | — | 1985-04-16 |
| 4492526 | Compressor drive system | Ludovicus J. van Nederkassel | 1985-01-08 |
| 4446706 | Washing machine | — | 1984-05-08 |
| 4409525 | Vehicle | — | 1983-10-11 |