Subject matter under 661 in which the superconductive electrical lead has controlled electrical characteristics designed to convey high frequency (e.g., greater than 3 megahertz) signals or narrow pulse signals; or is surrounded by a separate electrical conductor or envelope, called a shield, designed to minimize the effects of nearby electrical circuits.
SEE OR SEARCH CLASS
174, Electricity: Conductors and Insulators,
32+, for miscellaneous anti-inductive structures, particularly indented subclasses 35+ for miscellaneous electrical shields and screen structures not elsewhere classifiable.
307, Electrical Transmission or Interconnection Systems,
91, for anti-induction or coupling to other systems with magnetic or electrostatic field control (e.g., shielding).
315, Electric Lamp and Discharge Devices: Systems, 85, for gaseous tube systems with electromagnetic wave radiation prevention or shielding means.
330, Amplifiers,
68, for amplifiers with shielding means.
331, Oscillators,
67, for oscillators combined with electromagnetic or electrostatic shield means.
333, Wave Transmission Lines and Networks,
12, for transmission line inductive or radiation interference systems.
334, Tuners,
85, for radio tuners with shielding means.
336, Inductor Devices,
84, for induction devices with electric or magnetic shield means.
338, Electrical Resistors, 64, for electrical resistors with electrical shield means.
343, Communications: Radio Wave Antennas,
841+, for antenna structure with electric shield means.
348, Television,
820, for a cathode-ray tube video display with electric or magnetic shielding means.
361, Electricity: Electrical Systems and Devices,
816+, for radio interference type shielding means.
