Inventor: Lommerse, Gerardus Adrianus Petronella, Lommerse, Hendrikus Petrus
Inventor: Kraan, Kees Jan
Inventor: Kraan, Kees Jan
Inventor: van Sambeek, Ellen
Inventor: van Sambeek, Ellen
Inventor: de Gruyter, Andre
Inventor: de Gruyter, Andre
Inventor: Kievit, Christa
Inventor: Kievit, Christa
Inventor: van Sambeek, Ellen
Inventor: Kievit, Christa
Inventor: van den Top, Hendrik Jan
Inventor: van den Top, Hendrik Jan
Inventor: Kievit, Christa
Inventor: van Sambeek, Ellen
Inventor: Heemskerk, Gerardus J. C. M.
Inventor: van Sambeek, Ellen
Inventor: van Sambeek, Ellen
Inventor: Kievit, Christa
Inventor: van den Top, Henrik Jan
Inventor: van den Top, Hendrik Jan
Inventor: van den Top, Hendrik Jan