COMPUTER NUMERICALLY CONTROLLED MACHINE TOOLS, NAMELY, TURNING, DRILLING AND MILLING MACHINES, AND ACCESSORIES THEREFOR; COMPUTERIZED CONTROLLERS FOR CONTROLLING MACHINE TOOLS; MACHINES FOR FEEDING WORK TO AND FROM MACHINE TOOLS; AND, COMPUTER NUMERICALLY CONTROLLED MACHINE TOOLS, NAMELY, TURNING, DRILLING AND MILLING MACHINES, USUALLY A SMALL SIZE, SOLD SEPARATELY OR IN CONJUNCTION WITH OTHER COMPONENTS MAKING UP A MANUFACTURING SYSTEM AND USED FOR MACHINE OPERATOR TRAINING PURPOSES