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
Permissible mine equipment approved by the bureau of mines during 1953-62 :a supplement to Bulletin 543
Refine your search results
Published Year
1960-1969 (1)
Subject
Mines and mineral resources--Safety measures (1) *
Mining machinery (1)
Author
Evans, R. L. (1)
Lee, F. R. (1) *
