Assignee
Inventors
- Sara A. Currie (4 patents)
- Thomas W. Miller (6 patents)
- Eugene L. Dulaney (5 patents)
- James P. Springer (3 patents)
- Mary E. Valiant (6 patents)
- Sagrario Mochales del Val (1 patents)
- Sheldon B. Zimmerman (18 patents)
US Patent 4963569 · Granted Oct 16, 1990