Inventor: Shahi, Ashok Kumar, Sharma, Satya Narayan
Inventor: Patra, Nirmal Kumar, Kumar, Sushil
Inventor: Hollingsworth, Donald
Inventor: Gavello, Louis E.
Inventor: Rudolph, Nathan H.
Inventor: Carl George Klehm
Inventor: Carl George Klehm
Inventor: Carl George Klehm
Inventor: Carl George Klehm
Inventor: Carl George Klehm