Inventor: Stemkens, Henricus Godefridus Wilhelmus
Inventor: Stemkens, Henricus Godefridus Wilhelmus
Inventor: Stemkens, Henricus Godefridus Wilhelmus
Inventor: Stemkens, Henricus Godefridus Wilhelmus
Inventor: Stemkens, Henricus Godefridus Wilhelmus
Inventor: Head, William A., Head, Robert H.
Inventor: Gutter, Martien Everett
Inventor: Gutter, Martien Everett
Inventor: Gutter, Martien Everett
Inventor: Gutter, Martien Everett
Inventor: Gutter, Martien Everett
Inventor: Berry, James Bryan
Inventor: Berry, James Bryan
Inventor: Berry, James Bryan
Inventor: Jacob, Helmut B.
Inventor: Berry, James Bryan
Inventor: Van Antwerp, Jim
Inventor: Hunt, Marilyn, Wadsworth, deceased, Grady
Inventor: Wandell, Willet N.
Inventor: Wandell, Willet N.