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Vorrichtung zum Messen von Differenzdrücken in Wasser- und Abwasser-Reinigungsanlagen, bei stauerzeugenden Einrichtungen mit einer Ober- und Unterwasserseite
Momentmesser in Nebenschlussanordnung zur Messung der Stroemungsgeschwindigkeit von Gasen und Fluessigkeiten in Rohrleitungen von verschiedenem Durchmesser