 | United States. Congress. House. Committee on Appropriations - 1941 - 2372 стор.
...of mineral substances with a view to improving health conditions, and increasing safety, efficiency, economic development, and conserving resources through...the economic conditions affecting these industries; to investigate explosives and peat; and on behalf of the Government to investigate the mineral fuels... | |
 | United States. Bureau of the Budget - 1930 - 948 стор.
...substances, other than fuels, with a view to improving health conditions and increasing safety, efficiency, economic development, and conserving resources through...equipment, supplies, expenses of travel and subsistence, and the purchase, not to exceed $2,500, including exchange, operation, maintenance, and repair of motor-propelled... | |
 | United States. Congress. House Appropriations - 1930 - 1674 стор.
...with a view to improving health conditions and increasing safety, efficiency, economic developmentj and conserving resources through the prevention of...affecting these industries; and including all equipment, suppli expenses of travel and subsistence, and the purchase, not to exc $2,500, including exchange,... | |
 | United States. Congress. House. Committee on Appropriations - 1935 - 1198 стор.
...substances, other than fuels, with a view to improving health conditions and increasing safety, efficiency, economic development, and conserving resources through...equipment, supplies, expenses of travel and subsistence, and the purchase, not to exceed $2,500, including exchange, operation, maintenance, and repair of motor-propelled... | |
 | United States. Congress. House. Committee on Appropriations - 1935 - 1196 стор.
...substances, other than fuels, with a view to improving health conditions and increasing safety, efficiency, economic development, and conserving resources through...equipment, supplies, expenses of travel and subsistence, and the purchase, not to exceed $2,500, including exchange, operation, maintenance, and repair of motor-propelled... | |
 | United States. Congress. House. Committee on Government Operations - 1935 - 152 стор.
...to the improvement of health conditions, increase of safety, efficiency, economic development, and the prevention of waste in the mining, quarrying, metallurgical, and other mineral industries. It is also engaged in the protection of human life. To this end it conducts investigations pertinent... | |
 | United States. Congress. House. Committee on Appropriations - 1936 - 1682 стор.
...substances, other than fuels, with a view to improving health conditions and increasing safety, efficiency, economic development, and conserving resources through...equipment, supplies, expenses of travel and subsistence, and the purchase, not to exceed $12,000, including exchange, operation, maintenance, and repair of... | |
 | United States. Congress. House. Committee on Appropriations. Subcommittee on Interior Department Appropriations - 1936 - 1412 стор.
...improving health conditions and increasing safety, efficiency, economic development, and f'Mserving resources through the prevention of waste in the mining,...industries; and including all equipment, supplies, ^[lenses' of travel and subsistence, and the purchase, not to exceed $12.000, including exchange, operation,... | |
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Interior, to conduct inquiries and scientific and technologic investigations concerning mining, and the preparation, treatment, and utilization of mineral substances with a view to improving health conditions, and increasing safety, efficiency, economic... 
