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Publication of DE272887CpublicationCriticalpatent/DE272887C/de
B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
B60T3/00—Portable devices for preventing unwanted movement of vehicles, e.g. chocks
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Engineering & Computer Science
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Transportation
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Mechanical Engineering
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Footwear And Its Accessory, Manufacturing Method And Apparatuses
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