Url https://edisondigital.rutgers.edu/document/PT020392 Resource class dctype:Text Title [PT020392], Patent Application, Thomas Alva Edison, June 24th, 1881 Creator Edison, Thomas Alva Subject Railroads and transportation Dynamos and generators Electrical distribution system Publisher Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University Date 1881-06-24 Type Patent Application Identifier PT020392 Source 45:731 Rights Thomas Edison National Historical Park Date Created 1881-06-24 Has Version https://archive.org/details/edisonmicrofilm45/page/n743/mode/1up Archive.org Viewer, Microfilm Series Reel 45 Is Part Of PT020-F Uri https://edisondigital.rutgers.edu/document/PT020392 https://edisondigital.rutgers.edu/document/PT020392 --