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

Keyword Search

Inspection standards for strip mines(coal and lignite).

Published Year

• 1940-1949 (1) *

Subject

• Coal mines and mining--Safety measures (1)
• Mine inspection (1) *

• About TRAIL
• FAQ
• Join TRAIL
• Contact Us

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