Inventor: Palmer, Irene E.
Inventor: Holtmaat, Henricus Maria Joseph
Inventor: Holtmaat, Henricus Maria Joseph
Inventor: Holtmaat, Henricus Maria Joseph
Inventor: Bisschop, Elisabeth
Inventor: Bisschop, Elisabeth
Inventor: Bisschop, Elisabeth
Inventor: Holtmaat, Henricus Maria Joseph
Inventor: Holtmaat, Henricus Maria Joseph
Inventor: Holtmaat, Henricus Maria Joseph
Inventor: Holtmaat, Henricus Maria Joseph
Inventor: Holtmaat, Henricus Maria Joseph
Inventor: Holtmaat, Henricus Maria Joseph
Inventor: Holtmaat, Henricus Maria Joseph
Inventor: Holtmaat, Henricus Maria Joseph
Inventor: Palmer, Irene E.
Inventor: Taliaferro, Charles M.
Inventor: Taliaferro, Charles M.