A study of methods to improve the performance of drag bits used to cut hard rock

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dc.contributor.authorHood, Michael
dc.date.accessioned2015-08-06T08:57:11Z
dc.date.available2015-08-06T08:57:11Z
dc.date.issued2015-08-06
dc.descriptionA Thesis Submitted to the Faculty of Engineering University of Witwatersrand, Johannesburg for the Degree of Doctor of Philosophy. Johannesburg 1977en_ZA
dc.description.abstractNo abstract
dc.identifier.urihttp://hdl.handle.net/10539/18193
dc.language.isoenen_ZA
dc.subject.lcshDrag bits (Drilling and boring)
dc.titleA study of methods to improve the performance of drag bits used to cut hard rocken_ZA
dc.typeThesisen_ZA

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