Url https://edisondigital.rutgers.edu/document/MBN001021 Resource class dctype:Text Title [MBN001021], Patent Issued, Thomas Alva Edison, February 10th, 1874 Creator Edison, Thomas Alva Subject Automatic telegraphy Publisher Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University Date 1874-02-10 Type Patent Issued Identifier MBN001021 Source 90:622 Rights Thomas Edison National Historical Park Date Created 1874-02-10 Has Version https://archive.org/details/edisonmicrofilm90/page/n632/mode/1up Archive.org Viewer, Microfilm Series Reel 90 Is Part Of MBN001-F Uri https://edisondigital.rutgers.edu/document/MBN001021 https://edisondigital.rutgers.edu/document/MBN001021 --