Browse TRAIL Inventories

Methods and costs of sinking a circular concrete-lined ventilation shaft

Methods and costs of shaft sinking in the Coeur d'Alene District, Shoshone County, Idaho

Methods and costs of shaft sinking, U.S. Atomic Energy Commission Project Gnome, near Carlsbad, New Mexico

A study of dust-control methods for continuous mining of coal

Ventilation of continuous-miner places in coal mines

Electronic monitoring of mine fans

Rock-dust disseminator used in return air currents, Koehler Mine, Kaiser Steel Corp., Koehler, N. Mex.

Miniature oxygen deficiency alarm

Radiation-ventilation relationships in six underground uranium mines


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