When:
June 10, 2017 all-day
2017-06-10T00:00:00-06:00
2017-06-11T00:00:00-06:00
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.

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