Assignee
No assignee recorded.
Inventors
- Yan R. Uldrikis (6 patents)
- Ieva E. Preisa (2 patents)
- Gunar Y. Dubur (8 patents)
- Aina A. Zidermane (3 patents)
- Egils A. Biseniex (6 patents)
- Unknown
US Patent 4293700 · Granted Oct 6, 1981
No assignee recorded.