00462nam a2200169Ia 4500003000900000008004100009040001600050080001700066100001800083245007900101260004100180300001000221650000900231650001000240650002300250650001900273IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a621.833bTUP  aTuplin, W. A. 0aGear designcW. A. Tuplin                                                   aNew YorkbThe Industrial Pressc1962  a333p.  aGear  aGears  aMechanical devices  aNASA thesaurus