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EDOUARD HAGELAUER
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EDOUARD HAGELAUER
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Application filed by EDOUARD HAGELAUERfiledCriticalEDOUARD HAGELAUER
Application grantedgrantedCritical
Publication of FR457553ApublicationCriticalpatent/FR457553A/fr
Vorrichtung zur elektrischen Erwärmung von Wasser, Luft und andern Medien mittelst eines mit regulierbarem Wärmespeicher versehenen, elektrischen Heizkörpers