E-Databases

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E-Journals

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E-Thesis & Dissertation

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Freewares

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Institutional Repositories

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Open Course Wares

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Patent Database

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Patent Database

Deutschen patent- und Markenamtes: https://depatisnet.dpma.de

Indian Patent Database: http://www.indianpatents.org.in/db/db.htm

European Patent: Esp@cenet: http://worldwide.espacenet.com/

Google Patent Search: http://www.google.com/patents/

U. S. Patent and Trademark Office: http://www.uspto.gov/patent