Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Safety records of 76 sand and gravel plants, situated in 20 States, in safety competition conducted by U. S. Bureau of Mines in cooperation with National Sand and Gravel Assn. (see also Nat. Sand and Gravel Bul., vol. 12, no. 9, Sept. 15, 1931, pp. 5-8 and Pit and Quarry, vol. 23, no. 4, Nov. 18, 1931, pp. 61-63)
Safety records of 76 sand and gravel plants, situated in 20 States, in safety competition conducted by U. S. Bureau of Mines in cooperation with National Sand and Gravel Assn. (see also Nat. Sand and Gravel Bul., vol. 12, no. 9, Sept. 15, 1931, pp. 5-8 and Pit and Quarry, vol. 23, no. 4, Nov. 18, 1931, pp. 61-63)
Sand and gravel safety contest of 1930
U. S. Bur. Mines -- Report Investigation
Adams, W.W. (Autor:in)
1931
10 pages
Report
Englisch
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