Assignee
Inventors
- Cornelis Joannes Janssen (11 patents)
- Barend Jacobus Emmanuel Beijaard (7 patents)
- Franciscus Theodorus Henricus Johannes Van Der Steen (19 patents)
- Franciscus Albertus Gerardus Van Den Hurk (2 patents)
US Patent 9271506 · Granted Mar 1, 2016