Electric door and gate opening and closing systems; electric garage door and gate openers; controller systems for loading docks, warehouse shipping and receiving areas, manufacturing distribution areas and truck transfer areas and components thereof, namely, equipment for installation at a loading dock, consisting of dock levelers, powered vehicle restraints, electric overhead door openers, powered ramps, truck levelers, powered safety barriers, in the nature of powered vehicle stops and restraints, toe guards, and powered loading dock seals
Machinery