Url https://edisondigital.rutgers.edu/document/MBN001027 Resource class dctype:Text Title [MBN001027], Technical Note, Charles Batchelor, April 27th, 1875 Creator Batchelor, Charles Subject Automatic telegraphy Chemicals, chemical products, and chemical processes Publisher Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University Date 1875-04-27 Type Technical Note Identifier MBN001027 Source 90:627 Relation Johnson, Edward Hibberd Rights Thomas Edison National Historical Park Date Created 1875-04-27 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/MBN001027 https://edisondigital.rutgers.edu/document/MBN001027 --