US PATENT SUBCLASS 165 / 135
WITH THERMAL OR ACOUSTICAL BLOCKER

Current as of: June, 1999
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165 /   HD   HEAT EXCHANGE

135WITH THERMAL OR ACOUSTICAL BLOCKER {1}
136  DF  .~> Insulation and temperature modifier within barrier member

DEFINITION

Classification: 165/135

(under the class definition) Apparatus having structure provided to inhibit heat or sound transmission.

SEE OR SEARCH THIS CLASS, SUBCLASS:

69, for a resilient vibration dampener isolating an exchanger element.

133, for a heat exchanger having a coating.

134, for a heat exchanger with protective means.