(under the class definition) Subject matter where the functional element of the counter is operated at temperatures in the neighborhood of absolute zero where electrical resistance becomes essentially zero.
SEE OR SEARCH CLASS
257, Active Solid-State Devices (e.g., Transistors, Solid-State Diodes),
31, 36 for superconductive active devices, per se.
326, Electronic Digital Logic Circuitry,
1+, for superconducting logic circuits.
327, Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems,
86, for a stable state circuit utilizing a superconducting element and subclasses 527+ for miscellaneous superconducting circuits. 365, Static Information Storage and Retrieval,
160+, for static memory systems using superconductive elements.
