众芳摇落独暄妍 发表于 2009-6-23 21:34:22

2008 WIPO patent report

World Patent Report: A Statistical Review (2008)
http://www.wipo.int/ipstats/en/statistics/patents/wipo_pub_931.html

pdf版下载：

http://www.wipo.int/export/sites/www/ipstats/en/statistics/patents/pdf/wipo_pub_931.pdf
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