Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D404953 | Spring used in venetian blinds | — | 1999-02-02 |
| 4954092 | Electrical contact unit | Bertil E. Jansson, deceased, Magnus Jannson, Administrator | 1990-09-04 |
| 4934954 | Electrical contact unit | Bertil E. Jansson, deceased | 1990-06-19 |
| 4534631 | Slide guide adjusting device at slide projector | Kennert Hillstrom | 1985-08-13 |
| 4526440 | Fastening device for interchangeable projection lens | Jan A. Lundberg | 1985-07-02 |