Inventor: de Ruiter, Hendrik Marinus
Inventor: Burton, Stephen
Inventor: Ritchie, John Stanley
Inventor: Smith, Donald Robert
Inventor: Smith, Donald Robert
Inventor: Bernuetz, Andrew
Inventor: Bernuetz, Andrew
Inventor: Bernuetz, Andrew
Inventor: Bernuetz, Andrew
Inventor: Klemm, Nils, Glawe, Martin
Inventor: Klemm, Nils, Glawe, Martin
Inventor: Burton, Stephen
Inventor: Smith, Donald Robert
Inventor: Burton, Stephen
Inventor: Bernuetz, Andrew
Inventor: Ware, Richard G.