RU1779871C
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Device for drying adhesive layer during oil pipe repair
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RU1796924C
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Pressure gage
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RU1788060C
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Apparatus for removal of slag during melting in induction melting furnace
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RU1789650C
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Method for determination of rational parameters of pipe tongs
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SU1751294A1
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Device for sealing wells
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SU1791326A1
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Gripper pin lock
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SU1762136A1
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Chemical composition for spotting gas leak
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SU1747976A1
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Indicator compound for detection of gas leaks
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RU1784796C
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Method of repairing oil pipe line
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RU1789436C
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Life-saving device
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SU1745895A1
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Well cementing method and relevant device
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SU1710716A1
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Centralizer for downhole tools
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SU1767154A1
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Single-link elevator
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SU1765357A1
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Apparatus for extraction of sealing members of deep well pump polished rod mouth gasket
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SU1716075A1
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Method of non-destructive derrick testing in field conditions
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SU1714103A1
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Device for passing tools through rotor
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SU1738912A1
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Method for structure static testing and relevant device
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SU1756664A1
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Method and stand for testing leak detectors of hydropneumatic pipe lines
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RU1773644C
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Method of connecting pipes by intermediate insert
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SU1691691A1
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Method for determining breaking strength of flexible member
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