US PATENT SUBCLASS 237 / 40
.~ Steam

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

Internet Version by PATENTEC © 1999      Terms of Use


237 /   HD   HEATING SYSTEMS

28  DF  VEHICLE {7}
40.~ Steam {1}
41  DF  .~.~> Car boiler {1}

DEFINITION

Classification: 237/40

(under subclass 28) Heating systems utilizing steam radiators.

SEE OR SEARCH THIS CLASS, SUBCLASS:

6, for automatic control of the system.