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CS98086A1
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Device for the aeration of tank
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CS54086A1
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Device of circular feeding tank
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CS248616B1
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Nitrification and denitrification device
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CS248617B1
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Equipment for sludge sedimentation
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CS219103B1
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Method of cleaning the waste waters
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CS217065B1
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Applaince for simmultaneous removing the non-soluble substances and biochemical impurities from the waste water
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CS217068B1
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Method of putting the waste waters sewage plant in operation
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CS219372B1
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Facility for treating liquid dungs in the undersizes space of the stable objects
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CS206745B1
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Method of aerobe treatment for dungs from pigs large-scale fattening stations
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CS204184B1
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High-speed aerating rotor with vertical rotation axis,for aeration of liquid substances
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CS198564B1
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Seprator of insoluble substances from liquids
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