Thomas A. Edison, Incorporated
This company was incorporated on January 27, 1896, as the National Phonograph Company, then reorganized and newly incorporated as Thomas A. Edison, Inc., on February 28, 1911. Over time it consolidated most of Edison's companies, including the Edison Phonograph Works on August 28, 1924, Edison Storage Battery Company on June 30, 1932, and Emark Battery Corporation on December 30, 1933. The company merged with McGraw Electric Company on January 2, 1957, and became known as McGraw-Edison Company. In 1985 McGraw-Edison was absorbed by Cooper Industries.