Assignee
No assignee recorded.
Inventors
- Ernest M. Bevilacqua (12 patents)
- Nathan D. Ehrlich (15 patents)
- Anthony D. Franks (10 patents)
- Henry G. Grilk (9 patents)
- Unknown
- Arthur B. Nichols (6 patents)
US Patent D305888 · Granted Feb 6, 1990
No assignee recorded.