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Valvoda, F.
view article (1.0)How Changes Are Made in the National Electrical Code.Frank Valvoda and Associates, River Forest, ILSpecifying Engineer, Vol. 37, No. 6, 135, May 1977Valvoda, F.
view article (1.0)Overcurrent Protection: Protecting Against Arcing and Ground Faults.Frank Valvoda and Associates, Oak Park, ILActual Specifying Engineer, 92-97,134,136, May 1967