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SU1760079A1
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Air lift mixer for reverse circulation drilling
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RU1769170C
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Elastic vibrations source
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SU1605041A1
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Water-jet pump
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SU1605040A1
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Water-jet pump
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SU1596063A1
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Arrangement for stowing and feeding drill pipes
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SU1571204A1
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Device for supplying foam to borehole
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SU1543041A1
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Three-stage decompression system for automatic collection and placing of drilled-out rock
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SU1608328A1
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Device for rotary and high-frequency drilling
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SU1465539A1
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Tool for drilling with double drill string
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SU1441057A1
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Swivel for double drilling string
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SU1320376A1
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Vibrothrust grab
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SU1303690A1
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Equipment for drilling large-diameter holes
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SU1320375A1
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Apparatus for filling-up blastholes and boreholes
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SU1194992A1
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Drilling rig
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SU1137242A1
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Driving device for submersible pump of drilling rig
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SU1068585A1
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Vibrated grapple for sinking blast holes
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SU924341A1
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Drilling rig
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