Inventor: Brandsma, Christine
Inventor: Willems, Rogier
Inventor: Willems, Rogier
Inventor: Willems, Rogier
Inventor: van der Hoorn, Antonius C. J.
Inventor: de Jong, Cornelis Henricus Maria
Inventor: Mooney, Andrew R.
Inventor: Davis, Harold A.
Inventor: Platt, Graeme Charles
Inventor: Ernest D. Williams
Inventor: Edgar Norman Swane