Articles Patents and Inventive Effort By Fritz Machlup See allHide authors and affiliations Science 12 May 1961:Vol. 133, Issue 3463, pp. 1463-1466DOI: 10.1126/science.133.3463.1463 Fritz MachlupFind this author on Google Scholar Find this author on PubMed Search for this author on this site Article Info & Metrics eLetters PDF This is a PDF-only article. The first page of the PDF of this article appears below.
Science Vol 133, Issue 346312 May 1961 Table of Contents Print Table of Contents Ed Board (PDF) Front Matter (PDF)
