Inventing and patenting sourcebookde Levy, Richard C.MateriasPatentsHandbooks, manualsInventionsIntellectual property, copyright & patentsReference worksUSAGeneralScienceEdiciones (2)Inventing and patenting sourcebook (1992)Gale Research · inglésInventing and Patenting Sourcebook 2 (1992)
CComplete Idiot's Guide to Cashing in on Your InventionsComplete Idiot's Guide to Cashing in on Your Inventions
