(under subclass 13) Process directed to the forming or treating of material which is generally used in a circuit containing a conductor, and which material is intended to impede the flow of a steady or fluctuating electrical current passing through the mass by conversion of electrical energy to heat.
SEE OR SEARCH CLASS
29, Metal Working,
610.1, for resistor making and subclass 621.1 for electrical strain gauge making.
500+, for an electrically conductive or emissive composition.
257, Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) which include resistive materials in their construction.
338, Electrical Resistors, for electrical resistor structure.