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FR1432321A
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Liquid cooling installation
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US3212273A
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Process for disconnecting and connecting at least three heating currents for different temperatures
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GB816231A
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Process for the separation of acetylene-free ethylene from gas mixtures
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IE19354L
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Nitrogen-free argon
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FR878182A
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Process for the fractionation of gas mixtures into their constituents, in particular for obtaining heavy noble gases from air
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GB493398A
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Improved method of concentrating aqueous solutions, suspensions and the like
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US2186887A
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Process for the concentration of an aqueous solution by freezing
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