00450nam a2200133Ia 4500008004100000040001700041082002300058110003800081245004500119260005100164300000900215440004100224650005100265190328s9999||||xx |||||||||||||| ||und||  aNITILcNITIL  221sta509.73bU58T  aUnited States Information Service 0aTwelve inventions that changed the world  a[S.l]bUnited States Information Servicec1807  a45p.  aAmerican civilization seriess; no. 2  aInventions; Science; Technological innovations