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Gray and Barton building in Chicago about 1870s In December 1869, the location was at 162 South Water Street in Chicago. The firm was open for business by the end of the year in Chicago. Gray and Barton previously knew Stager and an agreement was signed on November 18, 1869, to launch the company as Gray & Barton. Military Telegraphs during the Civil War, advanced money for Gray to buy the half-interest and become a partner when Gray and Barton moved operations to Chicago. Shawk found those plans were beyond his business goals and offered to sell his half-interest partnership to Gray. Barton thought of future growth in electrical apparatus potential for the company and shared a common enthusiasm with the inventor, who was interested in leading a manufacturing plant capable of long-term developments. That inventor was Elisha Gray, a former physics professor at Oberlin College. During this Shawk and Barton partnership, one customer was an inventor sourcing parts and models for experiments. Shawk, was the Cleveland shop foreman and Barton, was a Rochester, New York telegrapher. Both men were former Western Union employees.

Barton in the former Western Union repair shop of Cleveland, to manufacture burglar alarms, fire alarms, and other electrical items. In January 1869, Shawk had partnered with Enos M. In 1856, George Shawk, a craftsman and telegraph maker, purchased an electrical engineering business in Cleveland, Ohio. The company was responsible for many technological innovations, as well as developments in industrial management. A subsidiary of the American Telephone and Telegraph Company for most of its lifespan, it served as the primary equipment manufacturer, supplier, and purchasing agent for the Bell System from 1881 until 1984, when the system was dismantled. The Western Electric Company was an American electrical engineering and manufacturing company officially founded in 1869.

Telephones, Central office switches, computers, electrical and electronics parts, and all other telecommunications related products supplied to Bell System companies

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