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

Keyword Search

The design of small wooden head frames

Published Year

• 1930-1939 (1)

Subject

• Mining engineering (1) *
• Prospecting (1) *

Author

• Staley, W. W. (1)

• About TRAIL
• FAQ
• Join TRAIL
• Contact Us

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