01265nam1 2200373 450 99000285516020331620070116085002.01-84542-316-X000285516USA01000285516(ALEPH)000285516USA0100028551620070116h2006----km-y0itay50------baengGB||||||||001yy<<The>> economics of patentsedited by John CantwellCheltenham [etc.]Elgar Reference Collectiocopyr. 2006v.25 cm<<The>> international library of critical writingsin economics1972001<<The>> international library of critical writingsin economics1970019900028551802033162001 <<Vol.1.>> : <<The>> patent system and the measurement of invention0019900028551902033162001 <<Vol.2.>> : Corporate patentingDiritti d'autoreAnalisi economica346.048CANTWELL,JohnITsalbcISBD990002855160203316IG I 2514/G.IG IBKGIUIANNONE9020070116USA010850Economics of patents991811UNISA