Url https://edisondigital.rutgers.edu/document/MBN001046A Resource class dctype:Text Title [MBN001046A], Technical Note, Charles Batchelor, May 6th, 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 1875-05-06 Type Technical Note Identifier MBN001046A Source 90:631 Rights Thomas Edison National Historical Park Date Created 1875-05-06 Has Version https://archive.org/details/edisonmicrofilm90/page/n641/mode/1up Archive.org Viewer, Microfilm Series Reel 90 Is Part Of MBN001-F Uri https://edisondigital.rutgers.edu/document/MBN001046A https://edisondigital.rutgers.edu/document/MBN001046A --