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1.
An old patent inspired the new "Y-zipper", a three-sided fastener (news.ycombinator.com)
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A Zipper Patent Sat in a Garage for 40 Years. Now It's Real (news.ycombinator.com)
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MIT researchers revive 40-year-old triangular zipper concept now made possible by 3D printing, creates shape-shifting robots and deployable structures — 3D-printed 'Y-Zipper' turns floppy tentacles into rigid beams in seconds (tomshardware.com)
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