04/19/1883 Dyer, Philip Sidney -- Legal Statements and Testimony
(Edison Lamp Co; Man, Albon; Welsh, Alexander; Broadnax, Amos; White, R S [supplied or conjectured]; Randolph, John F; Edison, Thomas Alva; Carman, William; Holzer, William; Sawyer, William Edward) Labor; Electric light and power; Incandescent lamp
[W100DDA]  National Archives, Washington, D.C.: Records of the Patent and Trademark Office (Record Group 241) -- Patent Interference Files -- Sawyer and Man v. Edison -- Testimony on Behalf of Edison
[W100DDA007; TAEM 0:0]
Courtesy of the National Archives.