US PATENT SUBCLASS 165 / 5
.~ Cleaning

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

Internet Version by PATENTEC © 1999      Terms of Use


165 /   HD   HEAT EXCHANGE

4  DF  REGENERATOR {4}
5.~ Cleaning

DEFINITION

Classification: 165/5

(under subclass 4) Apparatus wherein provision is made for the cleaning of the heat storage mass.