Url https://edisondigital.rutgers.edu/document/D7009A Resource class dctype:Text Title [D7009A], Patent Caveat, Thomas Alva Edison, December 17th, 1870 Creator Edison, Thomas Alva Subject Stock ticker, universal printer, and other printing telegraphs Publisher Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University Date 1870-12-17 Type Patent Caveat Identifier D7009A Source 12:214 Rights Thomas Edison National Historical Park Date Created 1870-12-17 Has Version https://archive.org/details/edisonmicrofilm12/page/n222/mode/1up Archive.org Viewer, Microfilm Series Reel 12 Is Part Of D7009-F Uri https://edisondigital.rutgers.edu/document/D7009A https://edisondigital.rutgers.edu/document/D7009A --