Description: 46 / (66) Wheeled (76) Vehicles (77) With Guiding Pathway or Guide Rail (78) With External Propulsion Means for Unpowered Vehicles
Hierarchy/Derived subclasses
CIPO search
search just 46/78This will show what classes derive from the input. Ex: entering 78/35 shows the derived classes and the search that can be used to find
patents in those subclasses.