Synonyme wurden verwendet für:
Kohle
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keywords:(Kohle)
Face pressure and cleat in underground workings
Face pressure and cleat in underground workings
Pulverized coal trials of S. S. Lorain
The shipment of coal -- The handcock anti-breaker
Haulage traffic expedited by dispatching
Powdered coal steam locomotives
Todd installation for pulverized coal
Todd installation for pulverized coal
Kentucky holds big first aid meet
In mine transportation good track plus planned haulage equals safety and efficiency
A haulage system with gathering locomotives only
A haulage system with gathering locomotives only
Safety problems in coal mining
Pulverized coal equipment installed on the mercer
Pulverized coal equipment installed on the mercer
Speed and economy in the shipment of export coal
The spontaneous ignition of coal in ships' bunkers
Floating coal-handling plants for seaports
Railways lack policy toward coal storage development
Development of coal cars on the Norfolk and Western
First ship-by-truck tipple to be constructed
Mechanical coaling stage at Hull North Eastern Railway
Federal trade commission report on coal
Electrically operated temperley transporters
The coal fields and seaports of the United States
Further economics of coal and ore handling
Shipping coal by the aerial wire rope system at Port Morien, Cape Breton