U.S. Pat. No. 5,016,559
pinshape
A Revolutionary Bookmark/Pen Holder Design from the Pioneering Days of Thingiverse. This Cutting-Edge Innovation, Patented in 1989, Revolutionized the Way We Manage Our Marking Strips and Writing Instruments. The invention combines a bookmark with a sleek writing instrument holder in one ingenious device. The design features a flat marking strip and an integral retaining clip at its end. The preferred embodiment boasts two symmetrical jaws that work together to create a channel for securely holding a writing instrument. This channel includes a retention portion where the pen or pencil is safely stored, and a mouth-like flared section that expertly guides the writing instrument into position, ensuring a snug fit every time.
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