This class (156) provides for pressing and for laminating not provided for in Class 100, i.e., (1) pressing combined with means peculiar to laminating or (2) presses modified uniquely for laminating.
As between this class (156) and Class 174, the article controls classification, i.e., patents claiming both conductor structure and the method or apparatus for making it will be classified in Class 174 and cross-referenced to Class 156.
156 for fluid pressure used to prevent collapse of a hollow core.
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