Search U.S. government technical reports digitized or harvested by TRAIL.
Some suggestions on safety in coal-mine haulage
Some phases of haulage accident prevention in anthracite mines
Transportation of iron ore, underground mines, Lake Superior district
Design of surface mine haulage roads :a manual
Surface testing and evaluation of the conveyor belt service machine
Surface testing and evaluation of the multiple-unit continuous haulage system
Reducing back injuries in low-coal mines :redesign of materials-handling tasks