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Feldspar mining and milling :near Keene, New Hampshire

Conditions in the feldspar industry

Feldspar

Published Year

• 1920-1929 (2)
• 1930-1939 (1)

Subject

• Feldspar mines and mining (3) *
• Feldspar industry (2)
• Feldspar (1)
• Feldspar mines and mining--New Hampshire (1)
• Feldspar--New Hampshire (1)
• Felspar (1)
• Mining machinery (1)
• Ore-dressing (1)

Author

• Ladoo, Raymond B. (2)
• Bowles, Oliver. (1)
• Lee, C. V. (1)

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