Url https://edisondigital.rutgers.edu/document/NB263015A Resource class dctype:Text Title [NB263015A], Technical Note, George Edwin Hart, May 6th, 1920 Creator Hart, George Edwin Subject Electric battery Publisher Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University Date 1920-05-06 Type Technical Note Identifier NB263015A Source 241:920 Rights Thomas Edison National Historical Park Date Created 1920-05-06 Has Version https://archive.org/details/edisonmicrofilm241/page/n931/mode/1up Archive.org Viewer, Microfilm Series Reel 241 Is Part Of NB263-F Uri https://edisondigital.rutgers.edu/document/NB263015A https://edisondigital.rutgers.edu/document/NB263015A --