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SU1797653A3
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Cutting bit of cutting member of mining machine
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RU1797652C
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Rock breaking tool
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RU1799421C
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Tunnelling system portal
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SU1765455A1
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Shaft ventilating air duct
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RU1787758C
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Pneumatic machine
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RU1797651C
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Boom-like cutting tool of heading machine
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SU1765345A1
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Rotation drilling tool assembly method
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SU1780556A3
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Two-cylinder solution pump
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SU1751342A1
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Attachment fitting of reloading device to mining machine
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SU1757862A1
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Air-operated percussive action machine
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SU1705173A1
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Crawler running gear
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SU1606646A1
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Drilling apparatus
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SU1752946A1
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Drive of cutting unit of mine cutter-loader
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SU1705577A1
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Drilling tool for large-diameter holes
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SU1671848A1
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Device for feeding sprinkling fluid to miner cutter
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SU1752967A1
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Assembly for attaching reloader to entry-driving machine
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SU1712578A1
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Connection of drill string rods
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SU1668679A1
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Tunnel shield
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SU1668680A1
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Tunnel shield
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SU1730457A1
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Tunneling unit
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