Cornwall & Patterson Piano hardware and screwdrivers. This maker of piano parts and hardware was originally founded by James T. Patterson before the civil war. In 1881 Jesse B. Cornwall joined the firm located at Fairfield and State. The company expanded and diversified in Bridgeport for over a half century. Area residents knew the firm for the elaborate hedges which lined the outside of its plant. Master Gardner and topiary artist, Frank Zeto, cared for the C&P gardens for years. His most famous creation was a huge piano with bench and lamp all shaped from a mixture of California privet and flower blossoms. In 1939, Harwin Cook acquired the C&P name and its machinery and moved plant operations to Crescent Avenue. Cook began using C&P machinery for the production of screw drivers. The company produced screw driver blades and sold them to other firms which would attach the handles.