Url https://edisondigital.rutgers.edu/document/NA265AAB Resource class dctype:Text Title [NA265AAB], Technical Note, Thomas Alva Edison, February 18th, 1917 Creator Edison, Thomas Alva Subject Military Electromotograph Microphone and other acoustic devices Phonograph Sound and acoustics Publisher Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University Date 1917-02-18 Type Technical Note Identifier NA265AAB Source 230:356 Relation Firestone, Harvey Samuel Kennedy, Absalom Mason Rights Thomas Edison National Historical Park Date Created 1917-02-18 Has Version https://archive.org/details/edisonmicrofilm230/page/n366/mode/1up Archive.org Viewer, Microfilm Series Reel 230 Is Part Of NA265-F Uri https://edisondigital.rutgers.edu/document/NA265AAB https://edisondigital.rutgers.edu/document/NA265AAB --