Assignee
Inventors
- Unknown
- Hakan V. Wikstrom (20 patents)
- Per A. E. Carlsson (17 patents)
- Anna Maria Persdotter Boije (3 patents)
- Unknown
- Clas Sonesson (30 patents)
- Nils P. Stjernlof (6 patents)
- Bengt R. Andersson (16 patents)
- Unknown
US Patent 5462947 · Granted Oct 31, 1995