RU1771522C
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Hinged joint
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RU1768939C
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Device for measuring length of moving ferromagnetic material
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RU1799288C
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Device for making mortar
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SU1753145A1
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Direct-flow valve
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RU1778269C
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Preventer
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SU1793996A3
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Method of making bimetallic body parts for head equipment oil-and-gas
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RU1797572C
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Mobile cement mixing plant
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SU1740779A1
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Long-travel drive of well sucker-rod pump rig
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SU1756526A1
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Reamer
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CN1054113A
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In drilling well, carry out the device of lift work
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CA2008974A1
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Rig for round trip operations at a well
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RU1770661C
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Sealing-off end fitting of high-pressure hoses
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SU1717802A1
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Round trip control device
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RU1776757C
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Wellhead device for suspension of well pipe
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SU1744235A1
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Blowout preventer manifold for jack-up drilling and offshore fixed platforms
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SU1728537A1
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Jet pump
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SU1705235A1
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Arrangement for placing rope onto winch drum
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SU1678751A1
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Telescopic mast of load-hoisting unit
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SU1761585A1
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Semi-submersible drilling rig
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SU1714076A1
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Fishing tool for metal items
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