RU1777030C
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Liquid sampler
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SU1755194A1
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Method of water-soluble genotoxicity agents determination
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RU1773879C
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Method of purifying sewage of six-valent chrome
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SU1745689A1
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Method of cleaning sewage from chromium (vi) compounds
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SU1723118A1
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Strain of micromycete monilia candida, used for purification of sewage from synthetic fatty acids
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RU1776636C
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System for treating surface run-off
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SU1699955A1
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Sewage biological treatment device
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SU1691324A1
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Aeration apparatus
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SU1682330A1
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Apparatus for water aeration
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SU1718001A1
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Device for sampling liquid from pipeline
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SU1603263A1
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Method of identifying petroleum
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SU1679346A1
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Method for determining concentration of substance in multicomponent solution
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SU1576883A2
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Automatic liquid diluent
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SU1691711A1
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Device for sampling extraction
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SU1558878A1
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Device for aeration of water bodies ,particularly, in winter
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SU1557474A1
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Apparatus for taking deep samples of liquid
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SU1551719A1
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Method of protecting soil from wind erosion
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SU1581705A1
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Method and apparatus for treating biochemical waste water containing foaming toxic impurities
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SU1562866A1
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Method of determining input threshold voltage of inverting logical elements
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SU1606463A1
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Method of recovering silver from effluents
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