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2112158-8
Administration of the federal coal-mine safety-act
Pittsburgh, Pa : US Dept. of the Interior
Nachgewiesen 1955(1956) - 1957(1958); 1952/58(1959) - 1952/62(1963)[?]
1955=7765; 1956=7795; 1957=7833; 1952/58=7902; 1952/59=7974; 1952/60=8042; 1952/61=8133; 1952/62=8188 von: USA. Bureau of Mines: Information circular (ISSN: 0096-1914)
OCLC number: 1368148039
DDC subject groups: 620 Engineering & machine engineering ; 660 Chemical engineering
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United States, USA
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02480746X
01-12-17