Context

Context of Operator and organizational maintenance manual : crane, wheel mounted, 20 ton at 10 foot radius, 2 engines, diesel engine driven, 4 x 4, air transportable, phase III; w/blade, bulldozer, earth moving; w/block, tackle, 20-ton; w/boom, crane 30-foot (American Hoist and Derrick model 2380), FSN 3810-763-7728 ..
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