US PATENT SUBCLASS 505 / 844
.~.~.~ Nuclear magnetic resonance (NMR) system or device: (Class 324)

Current as of: June, 1999
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505 /   HD   SUPERCONDUCTOR TECHNOLOGY: APPARATUS, MATERIAL, PROCESS

825  DF  APPARATUS, PER SE, DEVICE, PER SE, OR PROCESS OF MAKING OR OPERATING SAME {36}
842  DF  .~ Measuring and testing: (Classes 73, 324, 356, and 374) {2}
843  DF  .~.~ Electrical: (Class 324) {2}
844.~.~.~ Nuclear magnetic resonance (NMR) system or device: (Class 324)

DEFINITION

Classification: 505/844

Nuclear magnetic resonance (NMR) system or device: (Class 324):

(under subclass 843) Subject matter wherein the energy interchange between precessing atomic particles and a surrounding variable magnetic field is measured at a preferred (resonant) frequency.