United States Patent and Trademark Office, U.S. Patents, 1970-2019
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Title United States Patent and Trademark Office, U.S. Patents, 1970-2019 Author Ancestry.com Publisher Ancestry.com Operations Inc Repository Ancestry _APID 1,62219::0 Source ID S722593045 Linked to (1) John Kent Ellington
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Notes - <i>The Patent Examination Data System</i>. United States Patent and Trademark Office, 2020.

