Assignee
Inventors
- Luis Dancuart Kohler (3 patents)
- Gert Hendrik Du Plessis (5 patents)
- Francois Jacobus Du Toit (6 patents)
- Edward Ludovicus Koper (6 patents)
- Trevor David Phillips (8 patents)
- Janette Van Der Walt (5 patents)
US Patent 7147775 · Granted Dec 12, 2006