Bibliography Details
Eschner, Kat. “Before Velcro’s Patent Expired, It Was a Niche Product Most People Hadn’t Heard Of.” Smithsonian Magazine, April 3, 2017. https://www.smithsonianmag.com/smart-news/velcros-patent-expired-it-was-niche-product-most-people-hadnt-heard-180962701/.
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