Assignee
Inventors
- Sven Hastrup (23 patents)
- Sven Branner (23 patents)
- Fanny Norris (16 patents)
- Steffen Petersen (3 patents)
- Leif N.o slashed.rskov-Lauridsen (1 patents)
- Villy Johannes Jensen (6 patents)
- Dorrit Aaslyng (31 patents)
US Patent 5741694 · Granted Apr 21, 1998