When:
June 10, 2023 all-day
2023-06-10T00:00:00-06:00
2023-06-11T00:00:00-06:00
Where:
http://inventors.about.com/library/weekly/aa101697.htm
June 10, 1943. Hungarian Laszlo Biro patented the ballpoint pen, which he had been developing since the 1930s. He was living in Argentina, where he had gone to escape the Nazis. In many languages, the word forballpoint pen is biro.
