Transfer of wooden derrick mast over about 3 mi. of mountain road; despite fact that some of curves on this road have radius of only 30 ft. and grades up to 15 per cent were involved, move was made successfully by two motor trucks.
Derrick mast moved on motor trucks over winding road
Eng. News-Rec
Eng News-Rec Engineering News Record ; 101 , n 19
1928
1 Fig.
Article (Journal)
English
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