US PATENT SUBCLASS 237 / 16
COMBINED RADIATOR AND BOILER

Current as of: June, 1999
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237 /   HD   HEATING SYSTEMS

16COMBINED RADIATOR AND BOILER {2}
17  DF  .~> Fluid fuel
18  DF  .~> Solid fuel

DEFINITION

Classification: 237/16

(under the class definition) Heating systems comprising steam or water radiators combined with a boiler in a unitary structure.

SEE OR SEARCH THIS CLASS, SUBCLASS:

7, for automatic control.

SEE OR SEARCH CLASS

122, Liquid Heaters and Vaporizers, for closed boilers.

219, Electric Heating, for electrically heated radiators. 236, Automatic Temperature and Humidity Regulation, for automatic control.