Assignee
No assignee recorded.
Inventors
- Arie Van Nieuw Amerongen (5 patents)
- Engelmundus Cornelis Ignatius Veerman (7 patents)
- Willem Van't Hof (4 patents)
- Eva J. Helmerhorst (4 patents)
US Patent 6638531 · Granted Oct 28, 2003
No assignee recorded.