Assignee
Inventors
- Lars Hellmer (1 patents)
- Gerhard Keunecke (12 patents)
- Rainer Lell (6 patents)
- Ghazi R. Al-Muddarris (6 patents)
- Reinhard Pachaly (4 patents)
- Adolf Stauffer (3 patents)
- V. Rao Vangala (1 patents)
US Patent 4302434 · Granted Nov 24, 1981