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Publication of FR705983ApublicationCriticalpatent/FR705983A/fr
G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
G01P3/02—Devices characterised by the use of mechanical means
G01P3/16—Devices characterised by the use of mechanical means by using centrifugal forces of solid masses
G01P3/22—Devices characterised by the use of mechanical means by using centrifugal forces of solid masses transferred to the indicator by electric or magnetic means
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FR705983D1930-11-201930-11-20Appareil de police à placer sur les automobiles et destiné à indiquer la vitesse du véhicule
ExpiredFR705983A
(fr)