Assignee
Inventors
- Frederick P. Layman (23 patents)
- David Huntley (1 patents)
- Paul H. Dick (5 patents)
- George L. Coad (13 patents)
- Michael Kuhlman (14 patents)
- Roger M. Vecta (1 patents)
- Phillip M. Hobson (122 patents)
US Patent 4705951 · Granted Nov 10, 1987