Assignee
Inventors
- Richard P. Rubbo (25 patents)
- F. T. Tilton (1 patents)
- A. A. Mullins (1 patents)
- Daniel S. Bangert (27 patents)
- Forrest W. Howard (2 patents)
- Scott E. Carpenter (53 patents)
- Alfred R. Curington (18 patents)
US Patent 4949793 · Granted Aug 21, 1990