共 7 条
[2]
发明的源泉[M]. 科学技术文献出版社 , 陶建明 译, 1981
[3]
The Role of Independent Invention in U.S. Technological Development, 1880–1930[J] . Tom Nicholas. The Journal of Economic History . 2010 (1)
[4]
Inventors and invention processes in Europe: Results from the PatVal-EU survey[J] . Research Policy . 2007 (8)
[6]
The value of European patents evidence from a survey of european inventors .2 A.Gambardella,P.Giuri,M.Mariani. Final report of the patval eu project.Contract HPV2-CT- 2001 -00013 . 2005
[7]
Invention and society .2 Waldemar Kaempffert. American library association . 1930