Url https://edisondigital.rutgers.edu/document/E1108AP Resource class dctype:Text Title [E1108AP], Letter from Niagara Alkali Co, Herman David Ruhm to Thomas Alva Edison, April 21st, 1911 Creator Niagara Alkali Co Ruhm, Herman David Subject Electric battery Publisher Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University Date 1911-04-21 Type Letter Identifier E1108AP Source 248:226 Relation Miller, Harry Frederick Rights Thomas Edison National Historical Park Date Created 1911-04-21 Has Version https://archive.org/details/edisonmicrofilm248/page/n235/mode/1up Archive.org Viewer, Microfilm Series Reel 248 Is Part Of E1108-F Recipient Edison, Thomas Alva Uri https://edisondigital.rutgers.edu/document/E1108AP https://edisondigital.rutgers.edu/document/E1108AP --