You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "Elmer T. Cunningham infringed on the vacuum tube patent of the British electrical engineer and physicist, born on what day?" whose answer is 29 November 1849.
Each document should contain about 30 words, and these documents should contain useful information.

Query: Elmer T. Cunningham vacuum tube patent infringement
Useful Output:

Doc 1: His manufacturing company was called the AudioTron Sales Company. In 1916, the De Forest Company sued AudioTron for patent infringement. Cunningham settled out
Doc 2: Today he is remembered as the most successful of the tube counterfeiters, flaunting both Fleming's and deForest 's vacuum tube patents (1915-1920). Aggressive
Doc 3: This agreement,211 dated June 15, 1920, gave to Cunningham a personal, non- transferable license under the Fleming and de Forest patents for a period of ninety
Doc 4: A 1915 advertisement by Elmer Cunningham explains that, unlike the de Forest Audion, his AudioTron. can be bought alone. ○E-mail: bgtaylor@iee.org.
Doc 5: Cunningham was in direct violation by infringing on the Fleming and De Forest vacuum tube patents.  Cunningham's vacuum tube business after WW1. edit.