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A hydraulic-powered platform for scaling high backs and walls
Cutting action of rotary bits in oil shale
Cebolla Creek titaniferous iron deposits, Gunnison County, Colo.
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Published Year
1950-1959 (2)
1960-1969 (1)
Subject
Hydraulic machinery (1)
Iron ores--Colorado--Gunnison County (1)
Mining machinery (1)
Oil-shale industry--Equipment and supplies (1)
Oil-shales (1)
Rotary cutting (1)
Shale oils (1)
Author
Rose, Charles K. (3) *
Utter, Stephen. (2)
Morris, Carl. (1)
Shannon, Spencer S., (1)