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US3268060A
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Belt conveyor system
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US3352406A
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Belt take-up and storage unit for extensible belt conveyors
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US3146878A
|
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Extensible belt conveyor system
|
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US3105437A
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Device for breaking down coal and the like
|
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US3111087A
|
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Material breaking cartridge construction
|
|
US3169796A
|
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Continuous miner having pivotally mounted head
|
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US3096082A
|
|
Boring type continuous miner
|
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US3016204A
|
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Conveyor having load processing means
|
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US3090307A
|
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Material breaking cartridge
|
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GB888026A
|
|
Material breaking cartridge
|
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US3107776A
|
|
Articulating and telescoping conveying system
|
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US3064574A
|
|
Material breaking cartridge
|
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US3080007A
|
|
Roof drilling and bolting machine and wrench extension therefor
|
|
US3027146A
|
|
Shooting car for underground mine operation
|
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US2984333A
|
|
Conveying mechanism
|
|
US3028922A
|
|
Face drill
|
|
US3055447A
|
|
Mining machine with stepper mechanism
|
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GB868700A
|
|
Apparatus for blasting down material such as coal in a mine and valve for use in such apparatus
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US2955702A
|
|
Belt conveyor cover
|
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US3105588A
|
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Standards for belt conveyors
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