Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4458504 | Absorption refrigerating apparatus | Sonny O. Wallgren, Eva Haegerstrand | 1984-07-10 |
| 4286569 | Intake and discharge duct with external terminal for a burner-operated refrigerator | Ernst L. A. Bergman, Peter E. Blomberg, Lars S. Enger, Sonny O. Wallgren | 1981-09-01 |