RU1781382C
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Siphon
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RU1779802C
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Syphon spillway
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SU1755872A1
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Apparatus for cleaning water from suspended drift sand
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SU1728341A1
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Device for protection of pump intake pipe from debris
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SU1740525A1
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Multispan guy pipeline
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RU1798645C
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Device for taking samples of bottom ground
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SU1765279A1
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Trash catcher
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SU1738924A1
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Method for casing pullout
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SU1698353A2
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Device for protecting pump suction pipe from rubbish
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SU1719957A1
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Device to take soil samples
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SU1682515A1
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Drill bailer
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SU1677226A1
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Hole reamer
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SU1730503A1
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Device for mining of non-interconnected soils from bottoms of water pools
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SU1698365A1
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Watering plant
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SU1719532A1
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Water outlet device
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SU1681178A1
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Device for sampling ice, water and bottom sediments
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SU1706469A1
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Siphon water outlet
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SU1761851A1
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Multispan guying piping junction
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SU1656384A1
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Device for underwater ground sampling
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SU1661395A1
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Soil sampler
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