USAR, William S. Brophy. Marlin Firearms: A History of the Guns and the Company That Made Them. Stackpole Books, 1 maig 1989, p. 653. ISBN 978-0-8117-4694-6. «During the early 1900s, Hiram Percy Maxim designed and patented gun silencers. His efforts were directed toward both military and sporting arms and resulted in his forming the Maxim Silencer Company, Hartford, Conn.»