Inventor: Oostveen, Cornelis A.
Inventor: McDonald, Daniel Bede
Inventor: de Looff, Tonny M.
Inventor: de Looff, Tonny M.
Inventor: Head, William A., Head, Robert H.
Inventor: Kunhardt, Linda Elin Noack
Inventor: Fick, Paul Johannes Hendrik
Inventor: Blay, John William, Blay, Violet Marilyn
Inventor: Berry, James Bryan
Inventor: Berry, James Bryan
Inventor: Berry, James Bryan
Inventor: Van der Salm, Catherine Joy, Freeman, Judith Louise
Inventor: Berry, James Bryan
Inventor: Van Antwerp, Jim
Inventor: Hunt, Marilyn, Wadsworth, deceased, Grady
Inventor: Hoff, Petrus M. M.
Inventor: Hoff, Petrus M. M.
Inventor: Hoff, Petrus M. M.
Inventor: Hoff, Petrus M. M.