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Conditions in the feldspar industry

Feldspar

Published Year

• 1920-1929 (1)
• 1930-1939 (1)

Subject

• Feldspar industry (2) *
• Feldspar mines and mining (2)
• Feldspar (1)
• Mining machinery (1)

Author

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

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