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Application filed by Huldreich KellerfiledCriticalHuldreich Keller
Publication of CH48501ApublicationCriticalpatent/CH48501A/de
CH48501A1909-06-291909-06-29Vorrichtung zum Regulieren umlaufender Maschinen zum Fördern eines Fluidums (z. B. Pumpen, Ventilatoren etc.)
CH48501A
(de)