Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4267937 | Tear opening device for containers | Lars-Eric Piltz, Bo T. Quist, Siwer Mansson, Bengt Nilsson | 1981-05-19 |
| 4268336 | Method of manufacturing containers | Lars-Eric Piltz, Bo T. Quist, Siwer Mansson, Bengt Nilsson | 1981-05-19 |
| 4210618 | Method of making tear opening devices for containers | Lars-Eric Piltz, Bo T. Quist, Siwer Mansson, Bengt Nilsson | 1980-07-01 |