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1. Online Patent Information Resources Academia United States
Bibliography of online patent databases and information sources.
URL: http://www.lib.duke.edu/chem/patents.htm in English [Translate]
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2. Oppedahl & Larson IP Law Server Service United States
This is a web server to provide information about intellectual property.
URL: http://www.patents.com in English [Translate]
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3. Optipat Electronic Patents Service United States
Access as part of Micropatent to U.S. and European patents. Search for patents and download them.
URL: http://www.optipat.com in English [Translate]
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