Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Publication of BE539840ApublicationCriticalpatent/BE539840A/xx
B60D1/01—Traction couplings or hitches characterised by their type
B60D1/06—Ball-and-socket hitches, e.g. constructional details, auxiliary devices, their arrangement on the vehicle
B60D1/065—Ball-and-socket hitches, e.g. constructional details, auxiliary devices, their arrangement on the vehicle characterised by the hitch mechanism