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Publication of CH1787ApublicationCriticalpatent/CH1787A/de
Improvements in Apparatus for Determining the Condition of Water for Steam Generators with respect to the Amount of Chemicals Required for Softening it.
Perfectionnements dans les moyens et procédés de faire rentrer automatiquement dans les chaudières, les eaux provenant de la condensation ou du séchage de la vapeur