Wheeler, Eli; Tanner, Henry;
Maryland Historical Society Library
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II. Patents and Inventions (Feb. 1854-April 1880) This section contains correspondence that deals chiefly with litigation over patent rights and offers to sell the use of patented inventions. Some representative inventions dealt with are: Eli Wheeler's patent sleeping car, Henry Tanner's patent brake, Mallory's patent car coupler, etc. J. H. B. Latrobe is represented by 23 letters in his position as counselor to the B&O RR.