国际专利分类 (Chinese Wikipedia)

Analysis of information sources in references of the Wikipedia article "国际专利分类" in Chinese language version.

refsWebsite

Global rank Chinese rank

1,462^nd place

2,636^th place

2web.archive.org

1^st place

1^st place

low place

low place

epo.org

FAQ on IPC Reform. Hosted by the esp@cenet website, http://www.epo.org/patents/patent-information/ipc-reform/faq.html#16 互联网档案馆的存檔，存档日期2010-10-03.. (Internet Archive version dated October 12, 2007).

web.archive.org

FAQ on IPC Reform. Hosted by the esp@cenet website, http://www.epo.org/patents/patent-information/ipc-reform/faq.html#16 互联网档案馆的存檔，存档日期2010-10-03.. (Internet Archive version dated October 12, 2007).
Guide to the International Patent Classification (Eighth Edition), WIPO Publication No 560E.5/8, ISBN 92-805-1442-3, paragraphs 29-33 (Internet Archive version dated October 14, 2007).

wipo.int