Url https://edisondigital.rutgers.edu/document/NA351191 Resource class dctype:Text Title [NA351191], Technical Note, Absalom Mason Kennedy, July 31st, 1915 Creator Kennedy, Absalom Mason Subject Microphone and other acoustic devices Publisher Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University Date 1915-07-31 Type Technical Note Identifier NA351191 Source 236:578 Relation Hutchison, Miller Reese Edison, Thomas Alva Rights Thomas Edison National Historical Park Date Created 1915-07-31 Has Version https://archive.org/details/edisonmicrofilm236/page/n588/mode/1up Archive.org Viewer, Microfilm Series Reel 236 Is Part Of NA351-F Uri https://edisondigital.rutgers.edu/document/NA351191 https://edisondigital.rutgers.edu/document/NA351191 --