(under the class definition) Apparatus in which the material contents is subjected to a special operation not merely the incidental result of handling, usually for purposes of preserving or preparing it for handling or storage, but not amounting to operations for effecting permanent or irreversible changes in physical character such as are commonly called manufacturing.
(1) Note. See the main class definition for lines.
SEE OR SEARCH THIS CLASS, SUBCLASS:
11+, for corresponding processes.
48, for pretreatment of material by gas in a diverse fluid containing pressure system.
SEE OR SEARCH CLASS 53, Package Making,
111+, for packaging with contents material treating, the added operation in that class being sometimes a manufacturing step.
