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Meaning of Bureau of Mines

Bu'reau of Mines'

Pronunciation: [key]
— U.S. Govt. U.S. Govt.
  1. a division of the Department of the Interior, created in 1910, that studies the nation's mineral resources and inspects mines.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.