Inventor: Kievit, Christa
Inventor: Kievit, Christa
Inventor: Koot, Johannes Adrianus Maria
Inventor: Koot, Johannes Adrianus Maria
Inventor: van Meuwen, Johannes Marinus
Inventor: Wezelenburg, Jr., Jan-Willem
Inventor: Wezelenburg, Jr., Jan-Willem
Inventor: van der Zwet, Alexius Johannes Joseph