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US3022018A
|
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Renewable tip hammer assembly
|
|
US3018972A
|
|
Materials reducing apparatus
|
|
US2964249A
|
|
Material reducing apparatus
|
|
US2990051A
|
|
Endless belt conveyor
|
|
US2974267A
|
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Shuttle car with traction motor control
|
|
US2986347A
|
|
Material reducing apparatus
|
|
US2960209A
|
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Bucket elevator
|
|
US2986265A
|
|
Mining apparatus
|
|
US3011623A
|
|
Belt conveyor idler
|
|
US3021957A
|
|
Conveying apparatus
|
|
US2940676A
|
|
Material crushing apparatus
|
|
US2986383A
|
|
Means for diffusing a gas in a liquid
|
|
US2973854A
|
|
Bucket elevator
|
|
US2920750A
|
|
Reversible training idler
|
|
US2927681A
|
|
Conveyor idler stand
|
|
US2986266A
|
|
Endless belt conveyor
|
|
US2992722A
|
|
Mine conveyor
|
|
US2948552A
|
|
Hitch for mobile conveyor
|
|
US2875885A
|
|
Slack take up means for conveyor
|
|
US2945686A
|
|
Mining machine having means for cutting side wall holes for roof timbers
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