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CS31090A2
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Method of radon 222 and other volatiles from water removal
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CS419989A2
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Method of coagulant preparation for water conditioning and equipment for this method realization
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CS803788A1
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Method of waste waters treatment that result from ethylbenzene production during benzene's alkylation by ethylene in friedel-crafts reaction
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CS1025186A1
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Process for biologic purification of waste water at oxygen utilization
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CS925386A1
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Method of organic substances degradation contained in water
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CS706584A1
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Frequency digital stabilization circuit connection
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CS985183A1
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Method of pre cleaning of alcalic waste waters
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CS886683A1
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Liquidation method of sludges produced at waste waters purification process
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CS728883A1
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Method of contractility protective treatment of fabric for hose making
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CS446283A1
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Method of manufacture of textile flat configuration
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CS386383A1
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Artifitial vein and its manufacturing method
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CS52083A1
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Precipitation of a sulphate ions in industry vaste waters
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CS286783A1
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Waste water treatment method
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CS234146B1
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Method of biological coal desulphurization
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CS221455B1
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Method of intensification of earth sedimentation containers
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CS212855B1
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Method of cleaning hydrogen sulphide containing waste water
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CS211675B1
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Method of water purification and final treatment
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CS204867B1
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Method of and apparatus for surface finishing of textile fabrics,especially tubular knitworks
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CS203493B1
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Method of removing ammonium ions from waste water
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CS196133B1
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Method for biological regeneration of sorptive materials
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