Engineering Factors Belüftung von Metallbergwerken Abteilung Innenraum / Minen 1935
EUR 8,08EUR 9,50
Mining History
US DEPARTMENT OF INTERIOR /MINES 1940 Explosionsgefahren in Lager-Batterieräumen
EUR 8,08EUR 9,50
Prävention Steinbruchunfälle Department of Interior Bureau of Mines (1950) #473
EUR 8,08EUR 9,50
United States Code Annotated 1986 TITLE 30 MINERAL LANDS AND MINING 1 TO 800
EUR 18,36EUR 21,61
INTERNATIONAL MINERALS & CHEMICAL CORP. INDUSTRIAL DIVISION MINING BAG 13"x 8"
EUR 13,95EUR 16,42