Showing 1 - 9 of 9 for search: 'Ballinger, Homer J.', query time: 0.05s
by Ballinger, Homer J.
Published: U.S. Dept. of the Interior, Bureau of Mines, 1948
Description: 11 pages : illustrations ; 27 cm.
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by Ballinger, Homer J.
Published: U.S. Dept. of the Interior, Bureau of Mines, 1948
Description: 16 pages : illustrations ; 27 cm.
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by Ballinger, Homer J.
Published: U.S. Dept. of the Interior, Bureau of Mines, 1948
Description: 46 pages, 15 leaves of plates : illustrations, maps ; 27 cm.
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by Ballinger, Homer J.
Published: U.S. Dept. of the Interior, Bureau of Mines, 1948
Description: 8 pages, 3 leaves of plates : maps ; 27 cm.
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by Ballinger, Homer J.
Published: United States Bureau of Mines, 1947
Description: 82 pages : illustrations ; 27 cm.
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by Ballinger, Homer J.
Published: U.S. Dept. of the Interior, Bureau of Mines, 1950
Description: 6 pages : illustrations ; 28 cm.
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by Rühl, Otto.
Published: U.S. Dept. of the Interior, Bureau of Mines, 1949
Description: 119 pages : illustrations ; 27 cm.
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by Wright, Fred D.
Published: U.S. Dept. of the Interior, Bureau of Mines, 1950
Description: 4 pages : illustrations ; 28 cm.
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by Dupuy, Leon W.
Published: U.S. Dept. of the Interior, Bureau of Mines, 1949
Description: 23 pages, 15 leaves of plates : illustrations, map ; 27 cm.
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Zinc mines and mining Iron ores Lead mines and mining Oil-shales Zinc ores Air-compressors Boring Drilling and boring machinery Lead ores Limonite Mine examination