Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4869170 | Detonator | Sven Dahmberg, Elof Jonsson, Ingemar Olsson, Hjalmar Hesselbom, Rolf Wennergren | 1989-09-26 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4869170 | Detonator | Sven Dahmberg, Elof Jonsson, Ingemar Olsson, Hjalmar Hesselbom, Rolf Wennergren | 1989-09-26 |