00297nam a2200109Ia 4500008004100000040002500041082001600066100002400082245003900106260003400145300000800179230627s9999    xx            000 0 und d  aNORSU-SiacNORSU-Sia  a621.83 B47   aBickford , John H.  0aMechanisms for intermittent motion  bIndustrial Press., Inc.c1972  a264