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1by Holt, Stephen P.“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1946
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2“...Report of investigations (United States. Bureau of Mines) ;...”
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3“...Report of investigations (United States. Bureau of Mines) ;...”
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4by Webber, B. S.“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1946
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5by Heide, Harold E.“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1946
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6by Wright, Wilford S.“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1947
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7by Muir, Neal M.“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1947
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8by Wright, Wilford S.“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1947
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9by Toenges, Albert L. (Albert Louis), 1889-“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1947
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10by Traver, W. M.“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1948
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11Published 1948“...Report of investigations (United States. Bureau of Mines) ;...”
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12by Thomas, Bruce I.“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1948
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13by Thomas, Bruce I.“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1948
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14by Heide, Harold E.“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1948
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15by Thorne, Robert L.“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1948
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16Published 1948“...Report of investigations (United States. Bureau of Mines) ;...”
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17by Bjorklund, Stuart“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1948
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18Published 1948“...Report of investigations (United States. Bureau of Mines) ;...”
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19by Rutledge, F. A. (Franklin A.)“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1948
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20by Rutledge, F. A. (Franklin A.)“...Report of investigations (United States. Bureau of Mines) ;...”
Published 1948
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Government Document eBook