Url https://edisondigital.rutgers.edu/document/QP035AAJ Resource class dctype:Text Title [QP035AAJ], Letter from Philip Charles Dyrenforth to Dyer and Dyer, August 24th, 1904 Creator Dyrenforth, Philip Charles Subject Patent infringement Patent and legal counsel Cylinder record and duplicating technology Publisher Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University Date 1904-08-24 Type Letter Identifier QP035AAJ Source 225:748 Relation Dyer, Frank Lewis Kohlsaat, Christian Cecil Rights Thomas Edison National Historical Park Date Created 1904-08-24 Has Version https://archive.org/details/edisonmicrofilm225/page/n758/mode/1up Archive.org Viewer, Microfilm Series Reel 225 Is Part Of QP035-F Recipient Dyer and Dyer Uri https://edisondigital.rutgers.edu/document/QP035AAJ https://edisondigital.rutgers.edu/document/QP035AAJ --