Inventor: Danziger, Gavriel
Inventor: Burton, Stephen
Inventor: Stemkens, Henricus Godefridus Wilhelmus
Inventor: Danziger, Gavriel
Inventor: Niekerk, Johan Van
Inventor: Burton, Stephen
Inventor: Membrey, Stephen
Inventor: Burton, Stephen
Inventor: Burton, Stephen
Inventor: van Niekerk, Johan
Inventor: van Niekerk, Johan
Inventor: Heinrich, Westhoff