mobility products and related accessories for the handicapped, namely, wheelchair lifts for vehicles, including trucks, vans, minivans, motor homes, buses, and public transportation and structural parts therefor; seat bases, power seats, [ companion seats; ] door operators, electronic controllers for wheelchair lifts and ramps, magnetic switching apparatus for lowered floor minivans; vehicle top-mounted wheelchair carriers; hand controls for the operation of wheelchair lifts and ramps; [ power transfer seats for vehicles to provide easier ingress to and egress from a vehicle for disabled or mobility impaired people; ] land vehicles, namely, automobiles, motor homes, vans, minivans and buses featuring lowered floors and level-change devices to facilitate ingress and egress for passengers in wheelchairs, and structural parts and fittings for the aforesaid; lifting installations, namely, lifting apparatus for vehicles for storing wheelchairs in roof-top carriers