US PATENT SUBCLASS 237 / 79
.~ Shields
Current as of: June, 1999
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DEFINITION
Classification: 237/79
(under subclass 70) Heat shields applied to radiators or air directors combined with dust guards.
SEE OR SEARCH CLASS
148, Metal Treatment,
640+, for processes which utilize a protective or insulating shield of metal from heat in a method of treating solid or semi-solid metal to modify or maintain the internal physical structure (i.e., microstructure) or chemical property of metal.
165, Heat Exchange,
55, for a wall mounted heat exchanger with a projecting shield; subclass 129 for a heat exchanger equally adapted for conducting heating or cooling fluid arranged with a distinct flue forming enclosure; and subclass 134 for a heat exchanger with a protector.
454, Ventilation, 245+, and 284+ for floor and wall registers.
