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  1. United States Patent and Trademark Office
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    Search for patents | USPTO

    • To see if your idea has been patented abroad, you'll want to refer to searchable databases made available from other International Intellectual Property offices. Free online access to patent collections is provi… See more

    Patent Public Search

    The Patent Public Searchtool is a new web-based patent search application that replaced … See more

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    Patent Official Gazette

    The Electronic Official Gazetteallows users to browse through the issued patents for the current week. The Official Gazette can be browsed by classification or type of patent, for … See more

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  25. wikisource.org
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  26. United States Patent and Trademark Office
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