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; [ powe...