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RU1783361C
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Bench for hydraulic testing of pipes
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SU1736623A1
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Arrangement for moving objects inside pipe
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SU1763887A1
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Ultrasonic thickness meter
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RU1770887C
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Eddy-current transducer
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SU1711047A1
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Device for radiation inspection of annular weds of pipe lines
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SU1704063A1
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Device for measurement length of defects of straight-seamed pipes
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SU1735762A1
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Device to produce acoustic contact of an ultrasonic transducer and tested product
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SU1657836A1
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Device for shutting off pipeline
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SU960392A1
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Earth-moving machine for working soil under pipeline
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SU929949A1
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Self-propelled apparatus for lifting and holding up pipeline in trench at repairing
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SU914863A1
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Apparatus for closing pipeline
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SU848856A2
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Apparatus for moving on the pipeline outer surface
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SU756122A1
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Apparatus for supporting pipe section engaging to pipeline-laying machine
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SU805348A1
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Function generator with variable characteristic
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