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COMPUTERIZED NUMERICAL CONTROLLERS FOR MACHINE-TOOLS, ROBOTS OR MANIPULATORS, NUMERICAL CONTROL LINKING UNITS; COUPLERS AND CONTROL CARDS FOR PROGRAMMABLE AND COMPUTERIZED NUMERICAL CONTROLLERS, VARIABLE SPEED CONTROLLERS FOR PINS, PIVOTS AND SPINDLES, COMMUNICATION NETWORKS AND COMMUNICATION NETWORK UNITS FOR PROCESSORS USED FOR MANUFACTURING GOODS, COMPUTER PROGRAMS FOR USE IN INDUSTRIAL CONTROL APPLICATIONS