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SK75998A3
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Method for the removal of nitrates from water
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SK93093A3
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Current meter airscrew
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CZ219892A3
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Mixture for preparing polymeric micro-porous membrane
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CZ220092A3
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Settling tank
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SK220192A3
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Technological device for elimination of metals from solution
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CZ219992A3
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Fluid electrolytic cell
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WO9301135A1
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Apparatus and process for removal of dissolved metal forms
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CZ9102004A3
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apparatus for continuous removal of dissolved forms of metals from solutions
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CZ9102005A3
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method of optimizing efficiency in the removal of dissolved forms of metals from solutions
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CS174891A3
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Device for separating dispersion systems
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Apparatus for dispersion systems separation
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CS165391A3
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Method of enhancing efficiency in removing dissolved forms of metals fromsolutions
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CS303290A3
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Device for aerating water making use of fine bubbles
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Process for the determination of optimum batch of sulfides
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CS270390A3
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Process for increase in efficiency of coagulation
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CS275148B2
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Method of drinking waters' mineralization increase
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SK668089A3
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Inhibiting method of carbonate incrustation of geothermal user systems
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CZ469389A3
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swinging gate
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CS321189A3
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Process for separating specific and natural contaminants being present in water and aqueous solutions
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CS24989A3
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process for treating underground water contaminated by organic substances
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