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Welding Equipment and Accessories-Namely, Welding Power Supply Systems, Welding Heads, Welding Wire Feeders for Welding Systems, Tube Welding Devices, Computerized Power Controls for Welding Equipment, Electrical Power Supplies for Welding Equipment, Electro-Mechanical Devices Controlled by Electric Servos for Welding Equipment, Electrical Motor Speed Drives for Welding Systems, Arc Voltage Controllers with Integrated Digital Systems, Electrical Switching Systems in Control Pendants for Controlling Weld Operations, Card Readers for Welding System Programs, Punched Tape Readers and Programmers for Weld Operations, and, Punched Card Readers and Programmers for Weld Operations