07/13/1885 Batchelor, Charles -- Legal Statements and Testimony
(Edison Machine Works; Tomlinson, John Canfield; Edison, Thomas Alva) Incandescent lamp
[W100DFA]  National Archives, Washington, D.C.: Records of the Patent and Trademark Office (Record Group 241) -- Patent Interference Files -- Weston v. Latimer v. Edison -- Testimony and Exhibits on Behalf of Edison
[W100DFA081; TAEM 0:0]
Courtesy of the National Archives.