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F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
F28F19/004—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using protective electric currents, voltages, cathodes, anodes, electric short-circuits
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FR71155D1957-04-011957-04-01Procédé et dispositif pour combattre le tartre
ExpiredFR71155E
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