Url https://edisondigital.rutgers.edu/document/PT015AAL Resource class dctype:Text Title [PT015AAL], Letter from U.S. Patent Office. Commissioner to Dyer and Seely, Thomas Alva Edison, March 9th, 1891 Creator U.S. Patent Office. Commissioner Subject Patent application Phonoplex and railroad telegraphy Publisher Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University Date 1891-03-09 Type Letter Identifier PT015AAL Source 45:613 Rights Thomas Edison National Historical Park Date Created 1891-03-09 Has Version https://archive.org/details/edisonmicrofilm45/page/n625/mode/1up Archive.org Viewer, Microfilm Series Reel 45 Is Part Of PT015-F Recipient Dyer and Seely Edison, Thomas Alva Uri https://edisondigital.rutgers.edu/document/PT015AAL https://edisondigital.rutgers.edu/document/PT015AAL --