Inventor: Geerlings Lommerse, Petronella Maria
Inventor: de Jong, Jacobus Robertus
Inventor: de Jong, Jacobus Robertus
Inventor: Kardos, Joshua H.
Inventor: Kardos, Joshua H.
Inventor: Kardos, Joshua H.
Inventor: de Jong, Jacobus Robertus
Inventor: de Jong, Jacobus Robertus
Inventor: Burton, Stephen
Inventor: Ritchie, John Stanley
Inventor: Lee, Robert Edward
Inventor: Burton, Stephen
Inventor: De Jong, Jacobus Robertus
Inventor: de Jong, Jacobus Robertus
Inventor: Stephens, Carroll Theodore
Inventor: Oudshoorn, Hubertus Gerardus
Inventor: Berry, James Bryan
Inventor: Oudshoorn, Hubertus Gerardus