Url https://edisondigital.rutgers.edu/document/E1162AA Resource class dctype:Text Title [E1162AA], Letter from Henry B Clifford to Thomas Alva Edison, May 30th, 1911 Creator Clifford, Henry B Subject Metals and minerals Ore milling and separation Ore concentrate Publisher Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University Date 1911-05-30 Type Letter Identifier E1162AA Source 250:131 Rights Thomas Edison National Historical Park Date Created 1911-05-30 Has Version https://archive.org/details/edisonmicrofilm250/page/n140/mode/1up Archive.org Viewer, Microfilm Series Reel 250 Is Part Of E1162-F Recipient Edison, Thomas Alva Uri https://edisondigital.rutgers.edu/document/E1162AA https://edisondigital.rutgers.edu/document/E1162AA --