|
DE952248C
|
|
Jackhammer or the like.
|
|
DE939920C
|
|
Compressed air tool or the like, in particular a pneumatic hammer
|
|
DE895729C
|
|
Chisel or the like for pneumatic hammers with a collar holding the chisel in the hammer housing
|
|
DE950060C
|
|
Jackhammer or the like.
|
|
DE838734C
|
|
Pick hammer or the like.
|
|
DE850881C
|
|
Mechanical drilling device for rotary drilling
|
|
DE864984C
|
|
Mobile holding and guide device for drilling equipment
|
|
DE827049C
|
|
Process and device for the mechanical mining of coal or ore
|
|
DE948694C
|
|
Device for pulling conveyor wagons from mining operations and other rail vehicles
|
|
DE806662C
|
|
Mining device for mining operations
|
|
DE866500C
|
|
Pull-up device for conveyor wagons
|
|
DE938001C
|
|
Pick hammer
|
|
DE724561C
|
|
Air hammer
|
|
DE718862C
|
|
Drive cylinder of a conveyor carriage shifting device
|
|
DE711229C
|
|
Carriage for a sliding device of conveyor wagons
|
|
DE697893C
|
|
Device for pushing back approaching wagons, especially at a hairpin for conveyor wagons
|
|
DE697262C
|
|
Device provided with a free-flying percussion piston
|
|
DE704838C
|
|
Compressed air tool designed like a hammer
|
|
DE673218C
|
|
Conveyor device with revolving driver chains, in particular for pulling conveyor wagons forward
|
|
DE731602C
|
|
Conveyor carriage shifting or pulling device driven by a pneumatic cylinder with automatic control
|
