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Priority to IT8846510ApriorityCriticalpatent/IT1228006B/en
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Publication of IT1228006BpublicationCriticalpatent/IT1228006B/en
IT8846510A1988-11-091988-11-09
DEVICE FOR OBTAINING AN ELECTRIC-AUTOMATIC ACOUSTIC AND / OR OPTICAL WARNING DEVICE FOR SPEED LIMITS ON VEHICLES AND TRAINS
IT1228006B
(en)
ELECTRONIC DEVICE CAPABLE OF DETECTING THE SPEED OF A VEHICLE AND SIGNALING TO THE DRIVER THE REACHING OF PREDETINED MINIMUM AND / OR MAXIMUM SPEED LIMITS