Url https://edisondigital.rutgers.edu/document/NV15003 Resource class dctype:Text Title [NV15003], Technical Note, Charles Batchelor, Thomas Alva Edison, June 1877 Creator Batchelor, Charles Edison, Thomas Alva Subject Telephone Publisher Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University Date 1877-06-00 Type Technical Note Identifier NV15003 Source 162:239 Rights Thomas Edison National Historical Park Has Version https://archive.org/details/edisonmicrofilm162/page/n248/mode/1up Archive.org Viewer, Microfilm Series Reel 162 Is Part Of NV15-F Uri https://edisondigital.rutgers.edu/document/NV15003 https://edisondigital.rutgers.edu/document/NV15003 --