Assignee
Inventors
- Jay H. Benjamin (1 patents)
- James P. Gray (26 patents)
- Royal C. Hayward (1 patents)
- Matthew L. Hess (1 patents)
- Frederick E. McGriff (1 patents)
- Ellis L. Miller (1 patents)
- Robert WEINGARTEN (2 patents)
US Patent 4677588 · Granted Jun 30, 1987