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Application filed by Hermann VoigtfiledCriticalHermann Voigt
Publication of CH17361ApublicationCriticalpatent/CH17361A/de
Improvements in Apparatus for Determining the Condition of Water for Steam Generators with respect to the Amount of Chemicals Required for Softening it.
Improved Means for Regulating and Indicating the Water Level in Steam Boilers, Applicable also for Regulating the Supply of Liquid Fuel, Draining Steam Pipes and like purposes