06/07/1886 Insull, Samuel -- Legal Statements and Testimony
(Railway Telegraph and Telephone Co; Smith, William Wiley; Gilliland, Ezra Torrance; Dyer, Richard Nott; Edison, Thomas Alva) Phonoplex and railroad telegraphy
[W100DK]  National Archives, Washington, D.C.: Records of the Patent and Trademark Office (Record Group 241) -- Patent Interference Files -- Edison and Gilliland v. Phelps -- Testimony on Behalf of Edison
[W100DKH; TAEM 0:0]
Courtesy of the National Archives.