Assignee
Inventors
- Donald F. Best (17 patents)
- Gary N. Long (30 patents)
- Regis J. Pellet (67 patents)
- Jule A. Rabo (49 patents)
- Edward T. Wolynic (6 patents)
- Frank P. Gortsema (20 patents)
- Albert R. Springer (10 patents)
US Patent 4897178 · Granted Jan 30, 1990