Inventor: Scheffers, Robertus
Inventor: Scheffers, Robertus
Inventor: Bak, Elly, Steur, Nicolaas D. M.
Inventor: Bak, Elly, Steur, Nicolaas D. M.
Inventor: Hollingsworth, Donald
Inventor: Rudolph, Nathan H.
Inventor: George Y. Umeda, Daniel S. Shinoda
Inventor: William Warriner
Inventor: William A. Warriner