Assignee
No assignee recorded.
Inventors
- Hugh F. Frohbach (10 patents)
- Albert Macovski (43 patents)
- Norman A. Peppers (36 patents)
- Thomas L. Siwecki (5 patents)
- Louis F. Schaefer (14 patents)
US Patent 4310847 · Granted Jan 12, 1982
No assignee recorded.