Mannesmann
Mannesmann AG was a German corporation with headquarters in Düsseldorf. The company was founded in 1890 originally to produce seamless steel tubes. It was traded on the Frankfurt Stock Exchange. (Ticker symbol is MMN.) The company had 130,860 employees worldwide and revenues (1999) of €23.27 billion.
Over time, Mannesmann purchased a lot of companies to become a diversified conglomerate. Amongst its subsidiaries was Hartmann und Braun, which has since been sold off to Elsag-Bailey which was subsequently purchased by ABB
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