skip to content
Search
Search U.S. government technical reports digitized or harvested by
TRAIL
.
Keyword Search
Enter your search term(s):
[advanced search]
1 result returned
Browse TRAIL Inventories
(opens in new tab)
Search results
Mechanical mining in some bituminous-coal mines.
Refine your search results
Published Year
1950-1959 (1) *
Subject
Bituminous coal industry--United States (1)
Coal-mining machinery (1)
Author
Dowd, J. J. (1)
Haley, W. A. (1)
Magnuson, M. O. (1) *
Shields, J. J. (1)
