John Love Pencil Sharpener Patent J. L. Love patented his pencil sharpener in the US. Source Share This Article
Related on Shenhuifu Jun 4, 1973 Trio inventors were granted the patent to the ATM. Oct 2, 1965 A team of scientists invented the sports drink Gatorade in a University of Florida lab. Mar 22, 1960 Arthur Schawlow & Charles Townes was granted the first patent for a laser. Jan 28, 1958 A patent was received for Ole Kirk Christiansen's LEGO plastic bricks. Sep 13, 1955 Swiss engineer George de Mestral patented velcro.
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