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RU1790995C
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Packing of heat and mass transfer apparatus
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Apparatus for deep electrodehydration of petroleum products
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RU1793140C
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Reservoir breathing device
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RU1769963C
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Equipment for drilling fluid clearing
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SU1733562A1
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Soil tester
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RU1798505C
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Jet monitor
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RU1789244C
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Regular head-piece for mass-transfer processes
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SU1726649A1
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Method for soil stabilization
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SU1729567A1
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Headpiece for carrying out separation and mass transfer processes
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SU1751570A1
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Piston pump valve
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SU1710118A1
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Catalytic reactor
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SU1761190A1
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Electric coalescer for oil-water emulsion
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SU1705533A1
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Drilling rig rotor
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RU1776753C
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Drilling tongs for well tubing
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RU1789649C
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Wrench with electroinertia drive
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SU1731988A1
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Drive of well rod pump
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SU1767288A1
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Nozzle
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SU1752916A1
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Base plate of drilling rig
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SU1731986A2
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Pump machine with overlapping
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SU1682489A1
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Rotating column of manipulator
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