NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

Long-Run Trends in Patenting

John J. Beggs

Chapter in NBER book R & D, Patents, and Productivity (1984), Zvi Griliches, ed. (p. 155 - 174)
Published in 1984 by University of Chicago Press
© 1984 by the National Bureau of Economic Research

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This chapter first appeared as NBER working paper w0952, Long Run Trends in Patenting, John J. Beggs
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