00294nam a2200109Ia 4500008004100000041000800041082002100049100001500070245004900085260004200134300000800176211209s1988    xx            000 0 und d  aeng  a621.9023 N88 THY  aTHYER, G E  aCOMPUTER NUMERICAL CONTROL OF MACHINE TOOLS   aNEW YORKbINDUSTRIAL PRESS INC.c1988  a241