*US Patent 5502354, P. & A. Correa ''Direct Current Energized Pulse Generator Utilizing Autogenous Cyclical Pulsed Abnormal Glow Discharges'' | *US Patent 5502354, P. & A. Correa ''Direct Current Energized Pulse Generator Utilizing Autogenous Cyclical Pulsed Abnormal Glow Discharges'' |