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Drilling and preparation of reusable, long range, horizontal bore holes in rock and in gouge : Vol III. A development plan to extend penetration capability, increase accuracy, and reduce costs Hardin, JC ; Mack, WM,Jr ; Still, WL ; Tracy, N

By: Contributor(s): Publication details: Waltham, MA Foster-Miller Ass., Inc., Report nr HWA-7443 3, 1976Description: 291 sSubject(s): Bibl.nr: VTI 79.0527Location:
Item type: Reports, conferences, monographs