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CH648456A5
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Device for keeping undesirable animals away from a room
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DE2418963A1
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PROCESS AND DEVICE FOR AUTOMATICALLY NEUTRALIZING OR STABILIZING ORGANIC SOLVENTS DURING DISTILLATION
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DE2323624A1
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Recovery of water immiscible solvents - having separator from which water layer is recycled to evaporator
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DE2323420A1
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Differential still - for sep of the only two components of a liq mixt
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CH559058A5
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Sepg. solvents from air by adsorption - using steam for desorption which is reused after condensation and sepn.
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CH523095A
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Finished part degreasing - and sepn from shavings etc
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