using power from the motor of the vehicle or another motor

Full Title

Ladders characterised by being mounted on undercarriages or vehicles Securing ladders on vehicles (ladders having wheels, rollers, or runners E06C1/397 ) > with rigid longitudinal members > capable of being elevated or extended > using mechanical transmission only, with or without fluid or other non-mechanical couplings or clutches > using power from the motor of the vehicle or another motor