US PATENT SUBCLASS 237 / 67
STEAM
Current as of: June, 1999
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DEFINITION
Classification: 237/67
(under the class definition) Systems for heating buildings, rooms, or chambers by means of steam circulating through conduits or passing through radiators.
SEE OR SEARCH THIS CLASS, SUBCLASS:
6, for automatic control of car heating.
9, for automatic control.
12.8, for car heating.
40, for vehicle heaters.
SEE OR SEARCH CLASS 34, Drying and Gas or Vapor Contact With Solids,
119, and 124 for heaters for dryers.
