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United Kingdom
UK Intellectual Property Office
Chartered Institute of Patent Attorneys
Institute of Trade Mark Attorneys
British Library	New page offering links to numerous sites in patents and trademarks
International
Intellectual Property Resources	Award winning site of intellectual property related resources by Jeffrey Kuester
United States Patent and Trademark Office
European Patent Office
US Patent and Trade Mark Office database
World Intellectual Property Organisation
Community Trade Marks	Office for Harmonisation in the Internal Market, trade marks, models and designs
Licensing Executives Society International
Licensing Executives Society Europe
Patent Information User Group
Commercial Information Providers
Questel Orbit	Patent and Trademark Welcome Page
Derwent	Patent Information
Thomson & Thomson	The Trademark & Copyright Research Authority
Delphion patent search site