The U.S. Patent and Trademark Office is making available for sale the complete collection of 65 million U.S. patents that were granted from 1790 to today, on a set of 423 DVDs.
The U.S. Patent and Trademark Office is making available for sale the complete collection of 65 million U.S. patents that were granted from 1790 to today, on a set of 423 DVDs.
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