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

Keyword Search

Permissible Explosives, Mining Equipment, and Apparatus Approved Prior to January 1, 1924

Published Year

• 1920-1929 (1)

Subject

• Coal mines and mining -- Safety measures. (1)
• Explosives. (1) *

Author

• Crawshaw, John Edward, 1880- (1)
• Ilsley, L. C., 1880- (1) *
• Parker, Dorsey J. (1) *

• About TRAIL
• FAQ
• Join TRAIL
• Contact Us

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