00273nam a2200109Ia 4500008004100000041000800041082002400049100001500073245002200088260004500110300000800155211209s1948    xx            000 0 und d  aeng  a621.992 N48 COL/HAA  aCOLVIN F H  aJIGS AND FIXTARS   aNEW YORKbMCGRAW-HILL BOOK COMPANYc1948  a425