505 / | HD | SUPERCONDUCTOR TECHNOLOGY: APPARATUS, MATERIAL, PROCESS |
825 | DF | APPARATUS, PER SE, DEVICE, PER SE, OR PROCESS OF MAKING OR OPERATING SAME {36} |
884 | DF | .~ Conductor: (Class 174) {2} |
885 | DF | .~.~ Cooling, or feeding, circulating, or distributing fluid; in superconductive apparatus: (Class 174/15CA) {1} |
886 | .~.~.~ Cable: (Class 174/15S) |