4. Books, strips, and leaves
  5. Book, element thereof, or accessory therefor
  6. Covers

John C. Mann, Jr.

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Ring binder adaptor for removable covers

Books – strips – and leaves – Book – element thereof – or accessory therefor – Covers
Patent

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Ring binder separator

Binder device releasably engaging aperture or notch of sheet – Sheet retainer travels arcuate path – Travel in plane perpendicular to axis of rotation
Patent

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Profile ID: LFUS-PAI-P-640605

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