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G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
G01H3/00—Measuring characteristics of vibrations by using a detector in a fluid
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FR1089986D1953-07-011953-07-01Installation et appareillage pour la détection des bruits parasites dans le fonctionnement d'un véhicule automobile
ExpiredFR1089986A
(fr)