[LB039369], Letter from Alfred Ord Tate to Edison Lamp Co, Francis Robbins Upton, April 8th, 1890
https://edisondigital.rutgers.edu/document/LB039369
Transcription
April 8, 1890 Francis R. Upton, Esq., Gen'l Manager, Edison Lamp Company, Harrison N.J. Dear Sir:- Mr. Edison has read your letter of 5th instant, in regard to patenting the Combination Lamp Plug in England, Germany and France. He does not desire to patent this device in the countries mentioned, but says that the Lamp Co. can do so if it deems it desirable. Yours truly, A.O. Tate Private Secretary