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F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
F24H9/00—Details
F24H9/0005—Details for water heaters
F24H9/001—Guiding means
F24H9/0015—Guiding means in water channels
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FR751785D1933-03-031933-03-03Dispositif applicable aux chaudières à clrculation naturelle destinées au chauffage, par circulation d'eau chaude
ExpiredFR751785A
(fr)