US PATENT SUBCLASS 505 / 899
.~.~ Method of cooling

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


505 /   HD   SUPERCONDUCTOR TECHNOLOGY: APPARATUS, MATERIAL, PROCESS

825  DF  APPARATUS, PER SE, DEVICE, PER SE, OR PROCESS OF MAKING OR OPERATING SAME {36}
888  DF  .~ Refrigeration: (Class 62) {9}
899.~.~ Method of cooling

DEFINITION

Classification: 505/899

Method of cooling:

(under subclass 888) Subject matter including processes specially adapted for (a) removing heat from a substance; (b) maintaining a very low temperature environment; or (c) preserving such an environment.