(under subclass 223) Subject matter wherein the granular or powdered element consists of a mixture of two or more
different materials, each material being granular or powdered in the final state.
(1) Note. Subject matter in this subclass (224) usually consists of a conductive powdered material mixed with one or more powdered insulative materials. However, a mixture of two or more resistive materials in a powdered form is properly classified here.
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7+, for a resistor using diverse material to compensate for temperature change.