MAJOR, Circuit Judge.
This is an appeal from a decree of the District Court holding patent No. 1,727,108 invalid. The court also held that appellee had infringed the patent, if valid. This conclusion was not appealed from so the question of infringement is not here involved.
The patent in suit relates to a loose leaf binding construction whereby a pair of flexible helical springs are attached to a bottom cover, and receive loose leaf sheets for binding. After...
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