Synonyme wurden verwendet für:
Steinkohlenbergbau
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keywords:("Steinkohlenbergbau")
Nomogram for synchronization of underground railroad transportation
Underground transportation in coal mines
Shuttle cars from face to intermediate Haulage
Inspection and correction of damage to railways caused by mining in Saar
Report on Haulage accident at Newcraighall Colliery
Mobile loading into shuttle cars increases
Trolley wire locomotive haulage
Use of trolleyphones speeds mainline haulage
Efficient haulage depends on power distribution
Aerial tramway is transportation link at Pond Creek
How many cars per trip? Tonnage locomotive can handle safely determined by motor heating
Results of study of hydraulic transportation of stowing material
Safety aspects of underground transport in coal mines