Cambria Steel Company, Contact Rail.
Columbia Machine Works & Malleable Iron Company, Contact Shoes.
Consolidated Car Heating Company, Car Heaters.
D. & W. Fuse Company, Fuse Boxes and Fuses.
Electric Storage Battery Company, Storage Battery Plant.
Gamewell Fire Alarm Telegraph Company, Fire and Emergency Alarm Systems.
General Electric Company, Motors, Power House and Sub-station Switchboards, Control Apparatus, Cable.
General Incandescent Arc Light Company, Passenger Station Switchboards.
India Rubber & Gutta Percha Insulating Company, Cables.
Keasby & Mattison Company, Asbestos.