Browsing by Title "Maas Mine relay switch"

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      • Maas Mine relay switch 

        Author(s):Petersen, Max S.; Arthur Lakes Library; Russell L. and Lyn Wood Mining History Archive; United States. Bureau of Mines
        Date:1945-03
        The Maas Mine is located in the Marquette Range near Negaunee, Michigan. The Mine was discovered by George Maas and leased to the Cleveland-Cliffs Iron Company in 1901. Cleveland-Cliffs Iron Company was formed with the ...