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GB963609A
|
|
Improved machine for shearing coal and other minerals from the face of a seam
|
|
GB1042877A
|
|
Improvements in or relating to coal-cutter picks
|
|
GB912065A
|
|
Improvements in or relating to coal-cutter chains
|
|
GB738443A
|
|
Improvements in or relating to coal cutting machines
|
|
US2569584A
|
|
Coal-cutter chain
|
|
US2654410A
|
|
Locking device for toolholding or like set-screws
|
|
GB636170A
|
|
Improvements in or relating to chains for coal cutters
|
|
GB626080A
|
|
Improvements in or relating to coal cutter chains
|
|
GB619233A
|
|
Improvements in or relating to chains for coal cutters
|
|
GB591649A
|
|
Improvements in or relating to coal-cutting machines of the chain jib type
|
|
GB563437A
|
|
Improvements in or relating to locking devices for tool-holding or like set-screws
|
|
GB561533A
|
|
Improvements in or relating to coal-cutting apparatus
|
|
GB503338A
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|
Improvements in or relating to chain mining machines
|
|
GB495068A
|
|
Improvements in or relating to rotary power-transmission means
|
|
GB482566A
|
|
Improvements in or relating to conveying or discharge devices and machines or apparatus incorporating them
|
|
GB480337A
|
|
Improvements in or relating to elevator mechanism and apparatus embodying such mechanism
|
|
GB481959A
|
|
Improvements in or relating to chain mining machines
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