Electricity: Transmission To Vehicles Patents (Class 191)
Miscellaneous (Class 191/1R)
Systems of distribution (Class 191/2)
Drawbridge and transfer table (Class 191/9)
Magnetic induction (Class 191/10)
Vehicle in series (Class 191/11)
Flexible extensions (Class 191/12R)
Plate conductor (Class 191/13)
Sectional conductor (Class 191/14)
Conductors (Class 191/22R)
Collectors (Class 191/45R)

Foreign Patent Art Collections

Class-related foreign documents (Class 191/FOR000)