Assignee
No assignee recorded.
Inventors
- Roberto Olivieri (15 patents)
- Unknown
- Eugenio Fascetti (10 patents)
- Felice Centini (5 patents)
- Ludwig Degen (11 patents)
- Walter Marconi (12 patents)
US Patent 4332905 · Granted Jun 1, 1982
No assignee recorded.