April 2 1978 Velcro hits the market Advisist ResearcherApril 2, 2021Calendar 1978 Velcro hits the market Source: https://www.smithsonianmag.com/smart-news/velcros-patent-expired-it-was-niche-product-most-people-hadnt-heard-180962701/ Previous Post April 1 Next Post April 3
