Long Run Trends in Patenting
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This paper examines the patenting in the U.S. from its origins in 1790 up to 1980. The prime intent was to identify relationships between patenting and the rate of industrial development, and to further look for any regular cyclical patterns in the time series of patents themselves. To this end,
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美国国家经济研究局创建时间：
1982-08-01
