Search U.S. government technical reports digitized or harvested by TRAIL.

Keyword Search

The relation of table feed preparation to table efficiency

Economics of new sand and gravel developments

Sand and gravel excavation.

Sand and gravel excavation.

Sand and gravel excavation.

Sand and gravel excavation.

Sand and gravel excavation.

Sealing openings in abandoned mines by pneumatic stowing

Published Year

• 1920-1929 (2)
• 1930-1939 (5)
• 1980-1989 (1)

Subject

• Sand (8) *
• Gravel (7)
• Excavating machinery (4)
• Mine haulage (2)
• Compressed air (1)
• Gravity concentrators (1)
• Mine filling (1)
• Mining engineering (1)
• Silica (1)
• Stone, Crushed (1)
• Tailings (Metallurgy) (1)

Author

• Thoenen, J. R. (5)
• Fahrenwald, A. W. (1)
• Lipscomb, Jennings R. (1)
• Maksimovic, S. D. (1)
• Meckel, W. F. (1)
• Thoenen, John Roy, (1)

• About TRAIL
• FAQ
• Join TRAIL
• Contact Us

Search developed and maintained by the University of Washington Libraries
Copyright 2010