Url https://edisondigital.rutgers.edu/document/D8749AAP Resource class dctype:Text Title [D8749AAP], Letter from Lemuel Wright Serrell to Thomas Alva Edison, November 29th, 1887 Creator Serrell, Lemuel Wright Subject Patent interference Multiple telegraphy (duplex, quadruplex) Publisher Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University Date 1887-11-29 Type Letter Identifier D8749AAP Source 120:215 Relation U.S. Patent Office Dickerson, Edward Nicoll, Jr Rights Thomas Edison National Historical Park Date Created 1887-11-29 Has Version https://archive.org/details/edisonmicrofilm120/page/n224/mode/1up Archive.org Viewer, Microfilm Series Reel 120 Is Part Of D8749-F Recipient Edison, Thomas Alva Uri https://edisondigital.rutgers.edu/document/D8749AAP https://edisondigital.rutgers.edu/document/D8749AAP --