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G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
G01F3/00—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow
Einrichtung zum Messen des Vorrates an Fluessigkeit oder festen Stoffen in einem Behaelter durch Ermittlung der durch eine bestimmte Volumenaenderung des Leerraumes des Behaelters in diesem hervorgerufenen Druckaenderung