Inventor: Pounders, Jr., Cecil T.
Inventor: Pounders, Cecil
Inventor: Clark, John Reuben
Inventor: Ault, James Robert
Inventor: Ault, James Robert
Inventor: Ault, James Robert
Inventor: Rushing, Ralph C
Inventor: Kopilovitch, Mordehai
Inventor: Ault, James Robert
Inventor: Ault, James Robert