Assignee
No assignee recorded.
Inventors
- Boris E. Paton (3 patents)
- Vsevolod V. Vasiliev (4 patents)
- Valentin A. Bogdanovsky (3 patents)
- Unknown
- Viktor M. Gavva (3 patents)
- Unknown
- Unknown
- Unknown
US Patent 4996409 · Granted Feb 26, 1991
No assignee recorded.