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
Explosive-expansion center-hole anchor
Refine your search results
Published Year
1960-1969 (1)
Subject
Boring (1)
Rock pressure (1) *
Author
Osen, Lars. (1)
Parsons, Edward W. (1) *
