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Class Information
Number: 402/19
Name: Binder device releasably engaging aperture or notch of sheet > Resilient sheet retainer requiring deflection for sheet removal
Description: 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.
Sub-classes under this class:
Patents under this class:
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