US PATENT SUBCLASS 454 / 161-- .~.~.~.~ Having heat exchange core

US PATENT SUBCLASS 454 / 161
.~.~.~.~ Having heat exchange core

Current as of: June, 1999
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454 /	HD	VENTILATION

69	DF	VEHICLE (E.G., AUTOMOBILE, ETC.) {15}
143	DF	.~ Having inlet airway {7}
156	DF	.~.~ With air treatment means {3}
159	DF	.~.~.~ Heating {2}
161		.~.~.~.~ Having heat exchange core

DEFINITION

Classification: 454/161

Having heat exchange core:

(under subclass 159) Subject matter wherein the nonspecific unit for warming the air receives its heat from a cooling liquid of a propulsion plant of the transporting device.

SEE OR SEARCH CLASS

165, Heat Exchange,

59, 234+, and 248+, for the combination of air distribution means with specific heat exchange means adapted to heat or cool the air and subclass 60 for the combination of an air moistening device with a specific heat exchange means adapted to heat or cool a chamber.