ELECTRICAL PRODUCTS-NAMELY, [ COMMUTATORS, SLIP RINGS, ] STUD BASES FOR POWER RECTIFIERS AND DIODES, ROTOR WEDGES, [ CANNED MOTOR WINDINGS, SWITCH GEAR PARTS AND LIGHT BULB FILAMENT SUPPORTS, ] ALLOY WIRE, AND DRAWN COPPER SHAPES-NAMELY, RECTANGULAR BARS, COMMUTATOR BARS, ROTOR BARS HOLDING WEDGES, BALANCE WEDGE, MATERIALS, ELECTRODES, HEADER WIRES, AND TROLLY FEED