Inventor: de Looff, Tonny M.
Inventor: de Looff, Tonny M.
Inventor: Sahin-Georgiadou, Elisabeth
Inventor: Sahin, Elisabeth
Inventor: Blay, John William, Blay, Violet Marilyn
Inventor: Van der Salm, Catherine Joy, Freeman, Judith Louise
Inventor: Fielding, deceased, Hervey
Inventor: Hoff, Petrus M. M.
Inventor: Hoff, Petrus M. M.
Inventor: Hoff, Petrus M. M.
Inventor: Hoff, Petrus M. M.
Inventor: Hoff, Petrus M. M.
Inventor: Hoff, Petrus M. M.
Inventor: Hoff, Petrus M. M.
Inventor: McRae, Judith F.