Url https://edisondigital.rutgers.edu/document/D8370ZCI Resource class dctype:Text Title [D8370ZCI], Letter from George Silsbee Hale to Grosvenor Porter Lowrey, September 14th, 1883 Creator Hale, George Silsbee Subject Patent infringement Multiple telegraphy (duplex, quadruplex) Publisher Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University Date 1883-09-14 Type Letter Identifier D8370ZCI Source 70:1016 Relation Welch, Ebenezer Baker Adams, Milton Francis Rights Thomas Edison National Historical Park Date Created 1883-09-14 Has Version https://archive.org/details/edisonmicrofilm70/page/n1025/mode/1up Archive.org Viewer, Microfilm Series Reel 70 Is Part Of D8370-F Recipient Lowrey, Grosvenor Porter Uri https://edisondigital.rutgers.edu/document/D8370ZCI https://edisondigital.rutgers.edu/document/D8370ZCI --