Assignee
No assignee recorded.
Inventors
- Unknown
- Matheus Theodorus De Groot (2 patents)
- Antoon Jacob Berend Ten Kate (33 patents)
- Dirk Theodorus Andreas Van Asseldonk (8 patents)
- Johannes Theodorus Faustinus Keurentjes (4 patents)
US Patent 9873079 · Granted Jan 23, 2018
No assignee recorded.