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B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
B01D—SEPARATION
B01D1/00—Evaporating
B01D1/06—Evaporators with vertical tubes
B01D1/12—Evaporators with vertical tubes and forced circulation
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FR629395D1926-04-271926-04-27
Improvements to automatic circulation devices, using evaporative vapor, to concentrate and distill all liquids
ExpiredFR629395A
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