Patent statistics and the measurement of technological change—an assessment of the Norwegian patent data, 1840–1980 : Basberg B. L. World Patent Information 6 (4), 158–164

• Publisher: Elsevier Science
• Year: 1984
• Tongue: English
• Weight: 83 KB
• Volume: 6
• Category: Article
• ISSN: 0172-2190
• DOI: 10.1016/0172-2190(84)90361-2