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Sand and gravel excavation.

Sand and gravel excavation.

Sand and gravel excavation.

Sand and gravel excavation.

Published Year

• 1930-1939 (4) *

Subject

• Excavating machinery (4) *
• Gravel (4)
• Sand (4)
• Mine haulage (2)

Author

• Thoenen, J. R. (4)

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