RU1787694C
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Device for fastening ball blanks on lathe
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SU1639806A1
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Collector for harmful readily vaporizing liquids
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SU1468566A1
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Settling tank
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SU946595A1
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Slot-type filter
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SU904736A1
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Filter for cleaning liquid
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SU893220A1
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Liquid cleaning filter
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SU886940A1
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Self-cleaning cartridge filter
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SU856496A1
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Apparatus for dewate ring deposit on filtering surface
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SU856492A1
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Slot-type filter
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SU850136A1
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Filter for cleaning liquid
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SU874645A1
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Device for extracting oils and oil products from waste water
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SU850147A1
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Filter for liquid
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SU799782A1
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Filter for cleaning liquid
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SU765472A2
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Unit for pumping waste water
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SU776628A1
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Device for dehydration of sediments on filtering surface
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SU837358A2
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Filter for cleaning liquid
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SU806825A2
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Waste water pumping plant
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SU816496A1
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Continuous-action filter
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SU785227A1
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Waste water aerating device
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SU882554A1
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Ionite filter distributing device
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