Historical Patent Statistics of 44 Nations, 1791 to 1961.
收藏B2FIND2026-04-29 收录
下载链接：
https://b2find.eudat.eu/dataset/0c3f72a0-3bb4-5f2b-be70-f141f71c63a9
下载链接
链接失效反馈官方服务：
资源简介：
Pat J. Federico has compiled a data collection that includes historical data on patent statistics for 44 states. He draws on official publications of each country. The...
