"You will procure full evidence as to methods used in the manufacture of lamps by the Sawyer-Mann, Thomson, Houston, Westinghouse and United States Company. ### We will pay all expenses incurred by you, and such compensation as Mr. Edison may agree to give upon receipt from you of proper vouchers." [industrial espionage?]

Upton, Francis Robbins

Russell, James A

Stieringer, Luther

Sawyer-Man Electric Co

Westinghouse Electric Co

1888-09-14

1880-1889

Letter

Competition and market structure

Manufacturing

Incandescent lamp

D8833ACG

D8833

[D8833ACG], Letter from Francis Robbins Upton to James A Russell, Luther Stieringer, September 14th, 1888

123:395

Thomas Edison National Historical Park

Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University