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1972-02-04 |
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Procede d'epuration de fumees industrielles, de produit de combustion et d'efflents gazeux avant rejet a l'atmosphere
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1976-03-30 |
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Process for removing nitrogen oxides from gaseous mixtures
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1974-05-31 |
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Removal and recovery of nitrogen oxides and sulfur dioxide from gaseous mixtures containing them
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1976-11-04 |
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Fmc Corporation |
Removal of hydrogen sulfide from geothermal steam
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1979-05-21 |
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1984-06-12 |
Toschi Produktions-Gmbh |
Condensation process for separating air pollutants from waste gases, and specifically from flue gases
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Verfahren zum abtrennen von luftverunreinigungen aus abgasen, insbesondere aus rauchgas, durch kondensation
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1981-12-07 |
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1983-12-06 |
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Degussa Ag, 6000 Frankfurt |
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1986-07-19 |
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Method for increasing the production capacity of sulfuric acid plants and processes
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