Assignee
Inventors
- Enrico Selva (27 patents)
- Grazia Beretta (4 patents)
- Luciano Gastaldo (6 patents)
- Angelo Borghi (16 patents)
- Beth P. Goldstein (12 patents)
- Giovanni Cassani (12 patents)
- Vittorio Arioli (2 patents)
- Francesco Parenti (12 patents)
US Patent 4935238 · Granted Jun 19, 1990