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Dialog Adds Trademark Images to TRADEMARKSCAN^® Finland and Sweden; European Databases Updated Weekly

CARY, N.C., USA (February 6, 2003) — Dialog, a Thomson (NYSE: TOC; TSX: TOC) business and a leading worldwide provider of online-based information services and integrated information solutions, said today that it has added images to the TRADEMARKSCAN® files from Finland (File 679), and Sweden (File 675) available through the Dialog-branded family of online services.

Dialog's extensive portfolio of trademark files from Scandinavia, as with those from elsewhere around the world, are used by legal professionals, researchers, competitive intelligence specialists, marketing managers and others to research and track intellectual property issues.

TRADEMARKSCAN File 675 (Sweden) contains valid applications and registrations since 1885, plus unpublished applications and inactive unpublished and published trademarks since 1987. More than 77,000 trademarks, representing one-third of the file, now have associated images.

TRADEMARKSCAN File 679 (Finland) contains valid applications and registrations published since 1891, plus inactive, unpublished and published trademarks since 1995. About 36,000 trademarks now have associated images, out of the file's total of approximately 120,000 trademarks.

Additionally, all European trademark databases, as well as the International Register database of trademark information published by the World Intellectual Property Organization, are now updated on a weekly schedule, increasing the frequency of automatically generated Alerts and giving Dialog users faster access to accurate and more up-to-date trademark data.

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About Dialog
Dialog, a pioneer in developing the technology behind electronic information retrieval, is the world leader in providing online-based information services to organizations seeking competitive advantages in such fields as business, science, engineering, finance and law.

Today, Dialog's online services — offered through the Dialog®, Dialog Profound®, Dialog DataStar™, NewsEdge and Intelligence Data brands — give users the ability to precisely retrieve data from more than 1.4 billion unique records, accessible via the Internet or through delivery to enterprise intranets. Searchable content includes articles and reports from thousands of real-time news feeds, newspapers, broadcast transcripts and trade publications, plus research reports and analyst notes providing support for financial decision-making, as well as in-depth repositories of scientific and technical data, patents, trademarks and other intellectual property data

Corporate librarians, knowledge managers, other information professionals and end-users at business, professional and government organizations in more than 100 countries prize Dialog services for their depth and breadth of content, precision searching and speed.

Based in Cary, N.C., USA, Dialog has operations in 31 other countries worldwide. For more information about Dialog, please visit www.dialog.com. Or, please call (U.S./Canada) 800-3-DIALOG or (U.S.) 919-462-8600. Dialog's London office may be reached at (44) (0) 207-940-6900.

About The Thomson Corporation
The Thomson Corporation (www.thomson.com), with 2001 revenues of US$7.2 billion, is a global leader in providing integrated information solutions to business and professional customers. Thomson provides value-added information, software applications and tools to more than 20 million users in the fields of law, tax, accounting, financial services, higher education, reference information, corporate training and assessment, scientific research and healthcare. The Corporation's common shares are listed on the New York and Toronto stock exchanges (NYSE: TOC; TSX: TOC).

Designated trademarks used herein are the property of The Dialog Corporation or its subsidiaries. Registered marks are registered by The Dialog Corporation or its subsidiaries with the U.S. Patent and Trademark Office. All other marks are trademarks or registered trademarks of their respective owners.

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