Date Company Name Event Line Material Company Company founded 1949 McGraw Electric Company Line Material Company acquired by McGraw Electric Company 1957 McGraw-Edison Company Company name change 1985
Cooper Power Systems, subsidiary
Cooper Industries merged with McGraw-Edison and acquired ownership in 1985.
Before the Ohio Environmental Protection Agency. In the Matter of Cooper Power
Systems Inc. and Cooper Industries, Inc. Director's Final Findings and Orders.
Administrative Orders on Consent. November 20, 1998.