Assignee
Inventors
- Thomas H. Bennett (6 patents)
- Earl F. Carlow (3 patents)
- Edward C. Hepworth (8 patents)
- Wilbur L. Mathys (1 patents)
- William D. Mensch, Jr. (13 patents)
- Unknown
- Charles I. Peddle (16 patents)
- Michael F. Wiles (13 patents)
US Patent 4263650 · Granted Apr 21, 1981