(under the class definition) Device in accordance with part (1) or part (2) thereof wherein the sheet retainer* is spring-like and temporary physical distortion thereof from its normal sheet retaining state is intended and necessary as a prerequisite to the removal of a sheet* disposed thereon.
SEE OR SEARCH THIS CLASS, SUBCLASS:
8+, for a device including a flaccid, resilient or readily deformably sheet retainer which requires manipulation for removal of a sheet therefrom.
57, for a device including a coiled spring type sheet retainer where deflection thereof may be incidental to but not a prerequisite to removal of a sheet therefrom.
