Url https://edisondigital.rutgers.edu/document/MBN001027B Resource class dctype:Text Title [MBN001027B], Technical Note, Charles Batchelor, May 1st, 1875 Creator Batchelor, Charles Subject Automatic telegraphy Publisher Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University Date 1875-05-01 Type Technical Note Identifier MBN001027B Source 90:627 Rights Thomas Edison National Historical Park Date Created 1875-05-01 Has Version https://archive.org/details/edisonmicrofilm90/page/n637/mode/1up Archive.org Viewer, Microfilm Series Reel 90 Is Part Of MBN001-F Uri https://edisondigital.rutgers.edu/document/MBN001027B https://edisondigital.rutgers.edu/document/MBN001027B --