Velcro
Swiss electrical engineer George de Mestral invented his first touch fastener when, in 1941, he went for a walk in the woods and wondered why Burdock seeds clung to his coat and dog. He discovered it could be turned into something useful. He patented it in 1955 and subsequently refined and developed its practical manufacture until its commercial introduction in the late 1950s.
Thomas Coughtrie
Thomas Robb Coughtrie (25 November 1917 – 27 August 2008) was credited by "The Times" as the inventor of the Mole wrench. However, this conflicts with other references that show the invention of the Vise Grip locking pliers in Nebraska with an initial patent in 1921 and fuller developments patented in 1924.