00246nam a2200109Ia 4500008004100000041000800041082001800049100001100067245004100078260000900119300000800128211209s1975    xx            000 0 und d  aeng  a621.8 N75 OCV  aOCVIRK  aMECHANISM AND DYNAMICS OF MACHINERY   c1975  a594