Url https://edisondigital.rutgers.edu/document/PT021008 Resource class dctype:Text Title [PT021008], Patent Application, Thomas Alva Edison, August 25th, 1882 Creator Edison, Thomas Alva Subject Ore milling and separation Publisher Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University Date 1882-08-25 Type Patent Application Identifier PT021008 Source 45:733 Rights Thomas Edison National Historical Park Date Created 1882-08-25 Has Version https://archive.org/details/edisonmicrofilm45/page/n745/mode/1up Archive.org Viewer, Microfilm Series Reel 45 Is Part Of PT021-F Uri https://edisondigital.rutgers.edu/document/PT021008 https://edisondigital.rutgers.edu/document/PT021008 --