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Showing posts with label pen. Show all posts
Showing posts with label pen. Show all posts

Aug 22, 2019

[Answer] Who invented the modern ballpoint pen?

Step 1 : Introduction to the question "Who invented the modern ballpoint pen?"



...László József Bíró or Ladislao José Biro was a Hungarian-Argentine inventor, who patented the first commercially successful modern ballpoint pen. The first ball point pen was invented roughly fifty years earlier by John J. Loud but it did not attain commercial success.