Search

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

Keyword Search

Enter your search term(s):
[advanced search]

3 results returned

Search results

• Installation of a model man cage at the Avoca Shaft of the Heidelberg Coal Co., Avoca, Lucerne County, Pa.
• Safety achievements of the Continental Mine, Continental-Archibald Coal Co., Scranton, Lackawanna County, Pa.
• Safeguarding underground workmen from noxious gases resulting from blasting in strip mines