Synonyme wurden verwendet für:
Steinkohlenbergbau
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keywords:("Steinkohlenbergbau")
Accidents at coal face and their prevention
Aerial ropeway for transporting coal
Aerial tramway is transportation link at Pond Creek
A haulage system with gathering locomotives only
A haulage system with gathering locomotives only
Airlift and lift equipped with container feeders
A letter to a commissioner of the inland navigation : concerning the Tyrone collieries
An introduction in the planning and control of methan drainage ranges using computers
Armadillo heavy duty face conveyor
Automatic rope haulage clip for mine cars
Automatic track-brake system for man-haulage
Battery power for shuttle cars
Belt pulls shuttle car output up 7 percent grade at Standard
Big wheel loaders handle many jobs
Bituminous strippers install shovels and draglines and adopt larger automotive haulage units
Car handling at Savil Colliery
Cars for transporting explosives
Car transfer speeds rock gangway development