Inventor: Verduin, Henricus Gijsbertus Johannes
Inventor: Verduin, Henricus Gijsbertus Johannes
Inventor: Verduin, Henricus Gijsbertus Johannes
Inventor: Talmadge, Paul A.
Inventor: Talmadge, Paul A.
Inventor: van Veen, Johannes Gerardus
Inventor: Danziger, Gabriel
Inventor: Danziger, Gabriel
Inventor: Danziger, Gabriel
Inventor: Schneider, Joshua L.
Inventor: Danziger, Gabriel
Inventor: Danziger, Gabriel
Inventor: Danziger, Gabriel
Inventor: Stemkens, Henricus G. W.
Inventor: Danziger, Gabriel
Inventor: Danziger, Gabriel
Inventor: Danziger, Gabriel
Inventor: Stemkens, Henricus G. W.
Inventor: Stemkens, Henricus G. W.