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Bergbau
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keywords:(Bergbau)
Ore transportation at the Alaska Juneau mines
Handling freight to outlying mining operations
Betriebskosten und Selbstkosten der Zechenbahnen
Falls in bord-and-pillar whole workings
Underground haulage by locomotives
New "Torkret" auto-pneumatic stower
Winning and transport of raw materials used in ceramic industries: discussion
Haulage delays: Causes and remedies
Accounting methods at Roan Antelope
Saga of comstock lode, boom days in Virginia City
Recent developments in mining in clear Creek district, Colorado
Graphical method of controlling underground transport
Man-riding haulages in Lancashire
Car transporter allows stripping two seams simultaneously at Huntsville-Sinclair Mine
Safety record of coal industry shows improvement despite increasing hazards
Accidents at coal face and their prevention
Track brakes for man-riding vehicles
Track brakes for man-riding vehicles