Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4692214 | Apparatus for producing mechanical pulp with a refiner having its drive shaft connected to a steam turbine output shaft | — | 1987-09-08 |
| 4668341 | Method and apparatus for producing mechanical pulp with a steam turbine driven refiner | — | 1987-05-26 |
| 4538587 | Dressing device | — | 1985-09-03 |
| 4267937 | Tear opening device for containers | Lars-Eric Piltz, Bo T. Quist, Folke Kiellarson, Siwer Mansson | 1981-05-19 |
| 4268336 | Method of manufacturing containers | Lars-Eric Piltz, Bo T. Quist, Folke Kiellarson, Siwer Mansson | 1981-05-19 |
| 4210618 | Method of making tear opening devices for containers | Lars-Eric Piltz, Bo T. Quist, Folke Kiellarson, Siwer Mansson | 1980-07-01 |