ELECTRICAL RESISTANT MATERIALS COMPRISING WIRE, RIBBON AND TUBES, THERMOELEMENTS, BIMETALS, FOIL ELEMENTS; ELECTRIC AND ELECTRONIC MEASURING APPARATUS AND INSTRUMENTS, ELECTRICAL IGNITION AND CHECKING DEVICES FOR GAS AND OIL BURNERS, FOR STARTING AND BREAKING RHEOSTATS FOR ELECTRIC LOCOMOTIVES, TROLLEY BUSES, ELEVATORS, CRANES, STAGE LIGHTING, AND THE LIKE

HEAT RESISTANT IRON AND STEEL ALLOYS