Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Mine-timbering
Progress report for metal-mining branch on concrete and gunite as substitute for timber.
Mine-timbering
Progress report for metal-mining branch on concrete and gunite as substitute for timber.
Mine-timbering
Am. Min. Congress -- Standardization Division Bul
1925
5 pages
Standard
Englisch
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| Engineering Index Backfile | 1901
Engineering Index Backfile | 1925
| Engineering Index Backfile | 1900
Safe and efficient mine timbering
| Engineering Index Backfile | 1919
Engineering Index Backfile | 1895