Mechanically, electrically and manually operable devices, apparatus and systems for storing merchandise, books, documents, files and other articles, and parts of such devices, apparatus and systems included in this class; mechanically, electrically and manually operable mobile shelving systems including shelving systems having a hand operable mechanical driving system or an electrically operable driving system, parts and accessories therefor; mobile shelving systems, mobile shelving system supports; metal shelving, racking, storage structures, preformed metal sections for assemblage in the foregoing and parts and accessories therefor, all being parts of mechanically, pneumatically or electrically operated storage systems

Vehicles and apparatus for locomotion, including powered dollies for coupling to goods handling carts, trolleys and electric vehicles; wheelchairs; battery powered driving or propulsion units for assisting with moving mobile goods including but not limited to trolleys, carts, and wheelbarrows

Hand operated mechanical drive system which moves mobile tracked shelving units.