Url https://edisondigital.rutgers.edu/document/PT020114 Resource class dctype:Text Title [PT020114], Patent Application, Thomas Alva Edison, August 17th, 1880 Creator Edison, Thomas Alva Subject Metals and minerals Ore milling and separation Publisher Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University Date 1880-08-17 Type Patent Application Identifier PT020114 Source 45:710 Rights Thomas Edison National Historical Park Date Created 1880-08-17 Has Version https://archive.org/details/edisonmicrofilm45/page/n722/mode/1up Archive.org Viewer, Microfilm Series Reel 45 Is Part Of PT020-F Uri https://edisondigital.rutgers.edu/document/PT020114 https://edisondigital.rutgers.edu/document/PT020114 --