Url https://edisondigital.rutgers.edu/document/N314245 Resource class dctype:Text Title [N314245], Technical Note, Thomas Alva Edison, March 30th, 1886 Creator Edison, Thomas Alva Subject Agriculture Incandescent lamp Microphone and other acoustic devices Publisher Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University Date 1886-03-30 Type Technical Note Identifier N314245 Source 42:935 Rights Thomas Edison National Historical Park Date Created 1886-03-30 Has Version https://archive.org/details/edisonmicrofilm42/page/n944/mode/1up Archive.org Viewer, Microfilm Series Reel 42 Is Part Of N314-F Uri https://edisondigital.rutgers.edu/document/N314245 https://edisondigital.rutgers.edu/document/N314245 --