Question: Elmer Tiling Cunningham an American entrepreneur was in direct violation by infringing on patents of a British electrical engineer known for inventing the first what?
Sentence (from "Elmer T. Cunningham"): Elmer Tiling Cunningham (September 1, 1889 – June 14, 1965) was an American entrepreneur and businessman, specializing in vacuum tubes and radio manufacturing.
Relevant evidence: Yes