(under subclass 69) Apparatus in which the contents material is subjected to a treatment which either raises or lowers its temperature.
SEE OR SEARCH THIS CLASS, SUBCLASS:
11, for corresponding processes.
SEE OR SEARCH CLASS
53, Package Making,
127, for package making devices involving contents material treating by heating or cooling. 222, Dispensing,
146+, for dispensers having heating or cooling means, and see the search notes to subclass 146 for other search classes on heating and cooling subject matter.
