|
GB888112A
|
|
Improvements in endless belt conveyor systems
|
|
US2891778A
|
|
Long wall mining apparatus having a seam embracing channel
|
|
GB851702A
|
|
Improvements relating to the mining of minerals, particularly the mining of coal underground
|
|
US2923398A
|
|
Conveyors
|
|
GB734282A
|
|
Improvements relating to conveyor belt apparatus
|
|
GB636388A
|
|
Improvements in and relating to belt conveyors
|
|
GB599086A
|
|
Improvements relating to conveyor belts and their supporting means
|
|
GB590008A
|
|
Improvements relating to conveyor belt apparatus
|
|
GB599182A
|
|
Improvements in or relating to belt conveyors
|
|
GB570289A
|
|
Improvements in chills for metallurgical furnaces
|
|
GB599130A
|
|
Improvements relating to coal extraction
|
|
GB599185A
|
|
Improvements relating to appliances for handling loose material e.g. coal
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