Browse TRAIL Inventories

Some preliminary data on methods for controlling the dust hazards in mechanical mining

Testing safety catches on mine cages at some eastern bituminous-coal mines

Permissible mine equipment approved during 1944

Permissible mine equipment approved to January 1, 1947 :with appended list of available flame-lamp fuels

Permissible mine equipment approved during the calendar year 1947 :supplement to Information Circular 7432

Mine man-trip and ambulance cars


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