and engineering journal . The DRILL that staysunderground. The Joburg No. 3Cradle Hammer Drill \Y/E have proved thismachine to be thefastest drilling, and thelowest on cost of main-tenance, of anv machineof a similar size, typeand price on the us give you a demon-stration so that it mayshow you what we knowit can do. TheJjMachine that Sells

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Keywords: ., bo, bookcentury1800, bookdecade1890, booksubjectmineralindustries