Url https://edisondigital.rutgers.edu/document/N019115B Resource class dctype:Text Title [N019115B], Technical Note, William Joseph Hammer, June 15th, 1880 Creator Hammer, William Joseph Subject Incandescent lamp Publisher Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University Date 1880-06-15 Type Technical Note Identifier N019115B Source 30:945 Rights Thomas Edison National Historical Park Date Created 1880-06-15 Has Version https://archive.org/details/edisonmicrofilm30/page/n954/mode/1up Archive.org Viewer, Microfilm Series Reel 30 Is Part Of N019-F Uri https://edisondigital.rutgers.edu/document/N019115B https://edisondigital.rutgers.edu/document/N019115B --