21 VARIOUS COMPONENT PARTS OF ELECTRICAL AND RADIO APPARATUS-NAMELY, LAMP SOCKETS, TUBE SOCKETS, SPACER SLEEVES, [ VIBRATOR CLIPS, ] GROUNDING CUPS, SHOCKPROOF MOUNTING CUPS, TERMINALS, CONNECTORS, TERMINAL STRIPS AND CONNECTORS, SWITCHES, WIRING CLIPS, CONDUCTOR HARNESS AND HARNESS CLIPS, FUSE MOUNTINGS, TERMINAL PLUGS, CONNECTOR PLUGS, PLUG BUTTONS, [ RESISTORS, COILS AND OTHER CIRCUIT COMPONENTS,] AND PANEL FASTENERS