9 Adjustable Speed Controls for Electric Rotating Machines; Transformers; Impedance Coils; Electromagnets; Rectifiers; Wave Guides; Electrical Apparatus for Land, Air and Water Vehicles-Namely, Traction Controls for Locomotive Motor Coaches on Urban and Suburban Transit Vehicles; Signal Blocks; Track Circuits; Safety Relays; Parts of Train Driving Cabs-Namely, Automatic Pilot Apparatus, Automatic Train Control, Communications Signaling Apparatus for Transmitting Track Information, Onboard Computer Systems, and Shunt Controllers; Board Control Circuits, Controllers and Reversing Apparatus; Section Switches and Circuit Breakers; Telephone Call Boxes, Switchboards, Automatic Switching Exchanges and Extensions; Computers, Data Terminals and Processors; Railroad Safety Telephone Exchanges; Switching Concentrators, Teletransmission Exchanges, Alarms and Transmitters for Railroad Safety Monitoring; Railroad Track Circuits and Relays; Shell Switches; High and Low Voltage Electrical Cables, Cable Boxes and Accessories Thereof-Namely, Joints, Branch Connections, Terminal Boxes, Link Boxes, Junctions, Taps and Terminals