00612nam a2200181 a 450000500170000000800410001702000150005805000210007310000260009424500750012026000580019530000410025350400600029465000250035465000260037994200080040599900170041320230110152030.0160102s2004 dcua grb 001 0 eng d a079228296500aT15b.H3448 20041 aHarrison, Ian,d1965-14aThe book of inventions :bHow'd they come up with that/cIan Harrison. aWashington, DC :bNational Geographic Society,c2004. a288 p. :bill. (some col.) ;c28 cm. aIncludes bibliographical references (p. 287) and index. 0aInventionsxHistory. 0aInventorsvBiography. 2lcc c80760d80760