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United States Patent and Trademark Office (view source)
Revision as of 17:47, 2 December 2015
, 17:47, 2 December 2015→Patent Database
Classification Numbers can be found [http://www.uspto.gov/web/patents/classification/selectnumwithtitle.htm here].
USPTO's new visual database, PatentsView, can be found [http://www.patentsview.org/web/ here].
===Patent Types===
