Url https://edisondigital.rutgers.edu/document/NV17029 Resource class dctype:Text Title [NV17029] Technical Note, December 23rd, 1877 Creator Batchelor, Charles Edison, Thomas Alva Subject Escapement and governor mechanisms Cylinder phonograph Publisher Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University Date 1877-12-23 Type Technical Note Identifier NV17029 Source 4:898 Rights Thomas Edison National Historical Park Date Created 1877-12-23 Has Version https://archive.org/details/edisonmicrofilm4/page/n906/mode/1up Archive.org Viewer, Microfilm Series Reel 4 Is Part Of NV17-F Uri https://edisondigital.rutgers.edu/document/NV17029 https://edisondigital.rutgers.edu/document/NV17029 --