Frozen backfill mix formulations and process for use thereof...
Full face miner
Full sleeve retainer for step-shank of tool
Gathering head
Gauging apparatus and method, particularly for controlling...
Gravel loader
Ground engaging bit having a hardened tip
Guide roller for feeding electrical wire into conduit
Handle operated wire puller
Hauling and cutting equipment
Hauling and cutting plant
Hauling and shaving plant
Head intake for tunnelling machine
Heading machine
Heading machine
Heading machine
Heading machine having cutting unit made of disc tools
Hexagon turf plugger
High pressure pulsed water jet apparatus and process
High-pressure injection proppant system