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G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
G01F15/06—Indicating or recording devices
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FR564379D1923-03-271923-03-27Perfectionnements aux appareils servant à indiquer ou enregistrer électriquement des mouvements mécaniques
ExpiredFR564379A
(fr)