Search Results       Your search for [subject]Patent laws and legislation -- Economic aspects -- United States -- History -- 19th century returned 1 record.           Inventive activity and the market for technology in the United States, 1840-1920. by Lamoreux, Naomi R.; Cambridge: National Bureau of Economic Research, 1999. Subject: Inventions -- Economic aspects -- United States -- History -- 19th century; Technological innovations -- Economic aspects -- United States -- History -- 19th century; Patent laws and legislation -- Economic aspects -- United States -- History -- 19th century; United States -- Economic conditions -- 1865-1918; United States -- Economic conditions -- to 1865.          Add to Book Cart Relevance: 44.19%