Synonyms were used for:
Bergbau
Search without synonyms:
keywords:(Bergbau)
Switches for underground electric locomotive traction
Comparison of horse and benzine-locomotive haulage
The introduction of automobiles for mining work
An automatic signal system for crossovers on underground railways operated by electric locomotives
Development of trackless transportation in Styrian Ersberg
Fahrwerke der kontinuierlich arbeitenden Tagebaugeraete
Trackless transportation in ore mine of Kiruna