Search Results - V. I. Spirin

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  1. 1
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    Effective rock cutting tool for drilling small diameter for oil and gas by Ju. E. Budjukov, V. I. Spirin

    Published 2016
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  2. 2
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    Shaft cutters for geological exploration by V. I. Spirin, Ju. E. Budjukov, V. P. Onishchin

    Published 2017
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  3. 3
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    Criteria of the optimal duration when drilling shells with removable core receiver by Ju. E. Budjukov, V. I. Spirin, L. K. Gorshkov, V. P. Onishchin

    Published 2016
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