(under subclass 476) Apparatus wherein the tool has at least two work-engaging surfaces, of which surfaces one or another is used, at the choice of the operative, during deformation.
(1) Note. The disclosures of this subclass should not be confused with those of subclasses having the phrase "plural faces" (or equivalent expression) in their titles. In this subclass (477) one face of a tool or another face (or another portion of the first-mentioned face) is used at the option of the operative, and this choice is clear from the claimed disclosure. In the other (i.e., "plural faces") subclasses, the use of plural faces in succession or alternation (as well as simultaneously) is clear, or the specification falls short of clearly disclosing a choice of faces.
